Are You Taking Enough Cod Liver Oil?

by Ann Marie Michaels on June 24, 2011

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I recommend taking the Green Pasture brand fermented cod liver oil and high-vitamin butter oil. I truly believe in these two supplements. In fact, while there are a few other supplements I take, I think these two are non-negotiable.

But how do you know if you’re taking enough?

If you’re taking the liquid cod liver oil, you’re probably doing fine. It’s easy to measure a teaspoonful per day (most people will want to take around 1 teaspoon of fermented cod liver oil per day, according to the WAPF guidelines.)

But for those of you taking the capsules, you may not be taking enough. I know this is confusing to many of us, since I get this question a lot. So I wanted to write a post about it to refer to.

Dental Problems on Cod Liver Oil?

I got a call from my mother-in-law the other day, saying she was probably going to have an expensive dental surgical procedure. She said the plaque in between her teeth was eating away at the bone.

This didn’t make sense to me. I thought she had been taking the cod liver oil and butter oil. If you’re taking adequate amounts of these two supplements, you shouldn’t have dental problems like this.

When I asked her how much she was taking, she said she was taking two capsules per day of the fermented cod liver oil/butter oil blend. A reasonable thing to do, since the bottle says 2 capsules is a serving size. But clearly that’s not enough!

How Much Cod Liver Oil is in a Capsule?

According to this article by Ramiel Nagel, author of Cure Tooth Decay.

2 capsules of the Blue Ice Butter Royal is 1500mg (750 mg per capsule). This is approximately 1/3 of a teaspoon. The Fermented Cod liver oil capsule size is 500mg, so two capsules is approximately 1/4 teaspoon. Dave, the owner of Green Pasture’s said that 5 grams of capsules equals one teaspoon.

This means my mother-in-law is only taking the equivalent of 1/3 of a teaspoon of the blend of butter oil and cod liver oil. So she’s not getting a full teaspoon of cod liver oil per day. And with any kind of dental problems, she should arguably be taking more than one teaspoon per day.

Conversion from Liquid to Capsules

Fermented Cod Liver Oil Capsules

In order to get equivalent of 1 teaspoon per day of the plain fermented cod liver oil (not the butter oil blend), you need to take 8 capsules per day.

For children, that’s 4 capsules per day.

If you are pregnant or nursing, that’s 16 capsules per day.

Fermented Cod Liver Oil/Butter Oil Blend Capsules

If you are taking the cod liver oil/butter oil blend, you need to take 12 capsules a day to equal 1 teaspoon of cod liver oil and 1 teaspoon of butter oil per day.

For children, that’s 6 capsules per day.

If you are pregnant or nursing, you want to take 24 capsules per day.

Now, please keep in mind, these supplements are not drugs. They are foods. There is no “dosage” — these numbers are just based on the recommendations of the Weston A. Price Foundation.

You may want to increase or decrease these numbers based on your own personal needs.

Where to Buy Fermented Cod Liver Oil and Butter Oil

Please check out the marketplace for where to buy fermented cod liver oil and butter oil.

Questions? Comments?

Please post your comments and questions below.

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{ 193 comments… read them below or add one }

Marsha June 24, 2011 at 11:54 AM

Your resource page does not work for me…there are no links to click and nothing under your index. I clicked the link in the post. Am I missing something?


Marsha June 24, 2011 at 11:57 AM

Ahh, found the ad blocker, the page looks much better now!


cheeseslave June 24, 2011 at 4:11 PM



Michaela June 24, 2011 at 11:57 AM

The resources page worked for me ^^

My question, however, is how many teaspoons of the BO should adults and children be taking in the bulk form? Is 1/3t of just the BO enough, or should we be taking more/less?


cheeseslave June 24, 2011 at 4:13 PM

It really depends. Depends on how much butter you get in your diet already, depends on if you are healing or not…

I have read that adults should take 1/2 tsp per day. But if you’re taking the FCLO/BO blend, then it’s 1 to 1.


Erica June 25, 2011 at 8:32 AM

Hi Michaela,

The Butter Oil is not necessarily essential to use if one already obtains special foods on a daily basis, such as eggs, grass fed butter, liver, fish eggs, etc. However, if you find that you don’t get enough of these foods into your diet, then Butter Oil may be essential. I would probably do a 1/2 teaspoon with every main meal.


Alexandra June 24, 2011 at 12:01 PM

Do you recommend “working up” to those amounts? I’m just starting to eat whole foods, incorporate fermented foods, and taking the cod liver oil/butter oil blend capsules. Should I start low and work my way up to the full dosage? Or just dive right in? Which is better for you?


cheeseslave June 24, 2011 at 4:14 PM

I don’t think it’s necessary unless you have abnormal gut flora. If you don’t have enough good gut flora, you may have trouble with fermented foods — so you have to start slow and gradually work up.


Alexandra June 24, 2011 at 5:35 PM

Oh, good. So far, I’ve not had any issues, but I’ve only been taking two capsules a day. I’ll up my dosage and see how that goes. I’ve been drinking tons of kombucha and eating fermented pickles already, so it may be that my gut flora is okay.


Sarah L June 24, 2011 at 12:18 PM

I always get confused because we take the FCLO/BO blend. Is it still 1 tsp of the blend for adults or is it more????? And then how much for kids?? Thanks!


Erica June 24, 2011 at 1:15 PM

Hi Sarah L.

The WAPF recommends a serving of Cod Liver Oil that provides 10,000 iu of vitamin A and 2,000 iu of vitamin D.


Erica June 25, 2011 at 8:35 AM

For kids, it is recommended that take half the dose of adults.


Sarah June 24, 2011 at 12:21 PM

I’m taking the blend in capsule form for my teeth and have been wondering about the dosage. The capsules contain a lot of Vit A and D too. How many capsules are safe to take without overdosing on those two vitamins? Thanks!!


Dana June 24, 2011 at 7:57 PM

It takes a fair bit to overdose on A, especially if you are also taking D. I have heard that the radio of A to D should be 10 to 1 or better (9 to 1, 8 to 1, etc.). I am not sure what the dose of K2 (menatetrenone) should be but I know it varies in the Green Pastures butter oil. And it’s a good idea to take K with D also, if you can, hence the CLO and BO working synergistically.


cheeseslave June 25, 2011 at 8:50 AM

Vitamin A toxicity is a myth.

The studies that showed vitamin A toxicity were using retinol, a synthetic form of vitamin A.

And there have been many studies that contradict those retinol studies. “A study carried out in Rome, Italy found no congenital malformations among 120 infants exposed to more than 50,000 IU of vitamin A per day.16 A study from Switzerland looked at blood levels of vitamin A in pregnant women and found that a dose of 30,000 IU per day resulted in blood levels that had no association with birth defects.17″

“In adults, according to the Merck Manual, vitamin-A toxicity has been reported in arctic explorers who developed drowsiness, irritability, headaches and vomiting, with subsequent peeling of the skin, within a few hours of ingesting several million units of vitamin A from polar bear or seal liver. Again, these symptoms cleared up with discontinuation of the vitamin-A rich food. Other than this unusual example, however, only vitamin-A from “megavitamin tablets containing vitamin A. . . when taken for a long time” has induced acute toxicity, that is, 100,000 IU synthetic vitamin-A per day taken for many months.

Unless you are an arctic explorer, it is virtually impossible to develop vitamin-A toxicity from food. The putative toxic dose of 100,000 IU per day would be contained in 3 tablespoons of high vitamin cod liver oil, 6 tablespoons of regular cod liver oil, two-and-one-half 100-gram servings of duck liver, about three 100-gram servings of beef liver, seven pounds of butter or 309 egg yolks. Even synthetic vitamin A is not toxic when given as a single large dose or in small amounts on a daily basis. Children in impoverished areas of the world are routinely given two 100,000-unit doses of retinol per year for infants and two 200,000-unit doses for children over 12 months.”

Read more here:


Sally Oh June 25, 2011 at 9:14 AM

Hear, hear! I’m a follower of Dr. Andrew Cutler’s chelation therapy. He is a scientist/chemist and offers a similarly cogent argument against vitamin A toxicity. He points out that doctors used to recommend kids with acne take 300,000iu vitamin a everyday… until there was a drug patented to “cure” acne. Suddenly reports of Vit A toxicity were found everywhere. Color me suspicious (my normal state, lol!)


cheeseslave June 25, 2011 at 6:52 PM

That is so interesting, Sally! But not surprising…


Tim Huntley June 24, 2011 at 12:36 PM

I was taking 1 tablespoon during the winter (1.5 years ago) and my vitamin D still tested a woeful 22 ng/ml. I added a 5000 IU supplement (in addition to the fermented CLO)to bump me up into the 40 ng/ml range.



cheeseslave June 25, 2011 at 8:51 AM

That’s another thing I forgot to point out in the post. Some people do need larger amounts of cod liver oil when they first start out, because so many of us are deficient.


esther. August 8, 2012 at 11:17 AM


At 5 drops a day, this oil based Vitamin D got my levels from just below 20 to mid 70s in less than 6 months. And it runs about $20/bottle.


Julie D. June 24, 2011 at 12:48 PM

I had been taking more but Dr. Cowan’s recommendation to me was 1/2 teaspoon CLO plus 1/2 teaspoon butter oil per day. When I asked him how much CLO to give my kids, he said, 1/2 teaspoon also. I don’t think the dose was specific to me. I think that is his recommendation. I’m not exactly sure why. He said why but I don’t remember. (It was an info heavy session.)


Valerie June 24, 2011 at 12:49 PM

Thank you for this post – I’ve always wondered if I’m getting a full teaspoon when taking 2 capsules of the FCLO. Turns out, I’m not! I recently upped it to 3, and I think I’m going to ease my way up to 8 capsules a day More dark chocolate and raw milk for me (my chaser of choice – for avoiding the urpies)!!


Julie D. June 24, 2011 at 12:49 PM

P.S. My vitamin D was a bit low. He added 5000 IU Vitamin D per day for me.


Meg June 24, 2011 at 12:51 PM

…and that’s why we had to switch back to the actual oil, and not the capsules! When I was pregnant/nursing, I would go thru a bottle WAAY too fast, and it got ridiculously expensive. The oil blends last longer, and it’s easier to judge the quantities needed.


Cassandra June 24, 2011 at 1:00 PM

So if a pregnant woman were to use Green Pastures FCLO/HVBO blend capsules at the recommended dosage, one bottle would only last 5 days. It would cost over $200 a month. That’s insane.


Natalie June 24, 2011 at 1:38 PM

I agree with you Cassandra! I have two kids and a baby on the way. Green Pastures is a great product and I use it when I can (and another brand that a friend, a Real Foodie with a Ph.D in Nutritional Biochemistry, researched and recommended – a bit more affordable) but, it’s not affordable for the average American family. I’m really trying to find probiotics and fish oil that are of good quality, work and are affordable. Sadly, it’s pretty difficult and I have to watch for deals and flip flop b/w a few different brands. I would love for a real food blogger/nutritionist to come up with an affordable plan for people with medium-to-large sized families. We are a middle-class family and despite simple living, I still can’t really afford to spend much more than $50/mo. on supplements for the whole family. Much more than that and my husband about jumps through the roof. Sometimes the recommendations for supplements floor me. I know that buy all the quality supplements we should be taking all the time, we’d drop $200 a month or more. It’s just not reasonable in this financial climate.


Julie June 24, 2011 at 2:27 PM


What is the name of the product that your friend researched and recommended? We had been taking the FCLO/BO blend by Green Pastures, but stopped as it is summer and it is too expensive for us year-round. We don’t even take the full 1/2 tsp. per person, either, to stretch it. I always figure that some is better than none, but I’m not so sure after reading all of these comments.

Would greatly appreciate knowing another, less expensive brand out there provides similar positive results. Thanks in advance!



karyn June 24, 2011 at 4:28 PM

Yes, I just bought the blend since I’m in my first months of pregnancy and our children are spaced a little too closely together – so I wanted to give this baby a boost. But 24 capsules! I was already worried about affording the two capsules a day. Oy vey!


cheeseslave June 25, 2011 at 8:58 AM

I would not recommend the capsules if you on a budget.

I buy the chocolate cream FCLO/HVBO blend which is more economical. If you buy 12 or more at a time from the Green Pasture site, you get the volume discount and you save $10 per bottle.

If you take 4 teaspoons per day, there is enough in one bottle to last 24 days. If you get it for $39 (at the volume discount) per bottle, that costs $1.62 per day, or $48.75 per month.

That’s less than a daily (M-F) latte at Starbucks ($60/mo for 1 latte 5 days a week)

It’s less than cable TV for many people, and less than a single dinner out for a family of 4 in most cities.

I think it’s very affordable and very do-able if you consider what you are getting for the money.


Erica June 25, 2011 at 11:20 AM

Hi Cheeseslave,

It sure is affordable and do-able considering how much butter and eggs you would have to eat to get the same amount of vitamins A and D in the CLO.


Holly June 29, 2011 at 3:35 PM

I never go to Starbucks, don’t have cable tv, and never eat out. GP still isn’t affordable to me (very low income here). I did buy a bottle of the CLO butter oil blend, and take 1/2 tsp every other day to stretch it, but I wonder if I would be better off with a cheaper brand that I could take everyday…


Heather May 4, 2013 at 5:52 AM

Now multiply that by 5 people in my family and it is clear why it is NOT reasonably affordable for all families.


Peggy June 24, 2011 at 1:10 PM

Oh my goodness. That explains SO MUCH! I haven’t been experiencing the benefits that so many claim, but I’ve been taking only 2 capsules of the blend per day! Okay! 8 a day! I can do that!


A June 24, 2011 at 1:11 PM

So I’m actually concerned here — I think the Green pastures brand is very potent because it is fermented … so you might need less than you think. Also, too much might be dangerous, because you could get too much Vitamin A.

A reviewer on amazon where I got it mentioned that he got symptoms of Vitamin A toxicity while taking it.

I was taking about 4 caps a day for a week or two to deal with tooth problems, and then I got a stress fracture — maybe from low Vitamin D, if I was getting too much Vitamin A.

Maybe people who are prone to low Vitamin D like the elderly should watch out when taking this blend. I’ve backed down to just taking a capsule when I crave it — I figure my body can tell me when it needs it.


Heather June 24, 2011 at 1:33 PM

Your concerns are addressed if you click on the link for the WAPF recommendations. If you have additional links or resources on the subject they would be very helpful.


cheeseslave June 25, 2011 at 8:59 AM

Vitamin A toxicity is a myth. Please see my comment above and links addressing this.


Vitamin D January 7, 2012 at 7:05 PM

You could simply take more Vitamin D, even if you believe in Vit A toxicity.
I would take 10,000 ui daily when I starting, then wean to 5,000 ui daily after a few months.

Problem solved.


Rachel June 24, 2011 at 1:11 PM

Well I’m glad I read this before buying the capsules! I am just finally getting redy to start taking FCLO and thought the caps wold be agood way to get out of the taste issue. Of course there’s always a catch, so I guess there’s very good value – in many ways – to dealing with the taste!

I second teh comment of someone else above- if taking teh blended butter oil / FCLO what is the recommended dosage? I’m curious for fertility so a regular and a pregnancy dose wold be most helpful : )


Jen June 24, 2011 at 8:16 PM

If you carefully read the article, there IS a pregnancy recommended dose for the butter oil/FCLO capsules: 24 capsules a day.


cheeseslave June 25, 2011 at 9:01 AM

Yes, but I personally would not want to take 24 capsules a day. I will do it if I am so nausesous that I can’t manage to take the gel. But the gel is much more economical.


Holly June 24, 2011 at 1:22 PM

I wonder why they charge SO much more for the capsules??????? The process to put the oil in the capsule and the capsules themselves cannot be THAT much more expensive. That’s frustrating! I want to take FCLO but just couldn’t keep the oil form down without gagging (sorry if that’s TMI), so I switched over to capsules.


cheeseslave June 25, 2011 at 9:01 AM

I’m sure they price their products as competitively as possible.

I am always saying on this blog that if you don’t like a food, try it at least 10 times. Most people can overcome food aversions after trying something 10 times.


cheeseslave June 25, 2011 at 9:02 AM

Oh and if that doesn’t work, you could always buy the liquid and buy some empty capsules and fill them yourself.


Holly June 26, 2011 at 8:54 PM

Yes, that’s a good thought!


Lindsey April 25, 2013 at 2:06 PM

That’s what we do. My oldest two kids will only take it like this. We store the filled capsules in a mason jar in the fridge.


Linda June 24, 2011 at 1:23 PM

I have been taking 1 tsp fclo for a while, a good year I think. I have a little plaque between 2 of my front teeth. Should I increase that amount? I’ve wondered if I need the butter oil as well, but for me it’s pretty expensive on top of the fclo. I started oil pulling because I read that can help with teeth. Plaque is still there, but I haven’t been doing it very long.


Dana June 24, 2011 at 8:04 PM

You’re going to get some plaque on your teeth if there’s enough starch and sugar (even natural sugar) in your diet. Price documented that the traditional Swiss he examined sometimes had green slime on their teeth from not brushing, but their teeth were in excellent shape otherwise. Of course, the Swiss were also the highest-carb-eating group, I think, of all the groups he examined (and also had the most caries, not that that was saying much). After a certain point you have to start looking at the rest of your diet too.


cheeseslave June 25, 2011 at 9:03 AM

Have you had your vitamin D levels tested? It’s easy to do — you can find links online. If you’re low, increase your CLO.


Connie June 24, 2011 at 1:29 PM

I bought the FCLO liquid and could not take it straight, so I bought empty capsules and put it in them to take. Even still I’m often burping it up all day (or night depending when I take it)

I was so hoping the capsules would be cost effecient, but it doesn’t look like it. Bummer


cheeseslave June 25, 2011 at 9:04 AM

You may want to try Swedish bitters to help you digest the fat. Many people who have been on a low fat diet for a long time have trouble digesting fat


WMarlowe September 27, 2013 at 11:40 AM

@Connie: you can freeze the capsules and they will not repeat on you. This will also not affect the quality per the Green Pastures website. People often freeze the bottles when they buy the cases.


Naomi Snider June 24, 2011 at 1:30 PM

Just thought you all might be interested to hear what clo did for me. I’m diabetic, hypothyroid, and all the yucky stuff people suffer as a result of these conditions. I used several bottles of clo with no noticeable difference, using the dosage suggested on the label. Very discouraged, as we scrape by on a very small social security income. I had become determined, however, after reading several blogs in these here parts, that I would increase my dosage and see whether I would notice a difference then. So I increased it to 3 teaspoons daily. About halfway through the second bottle at that dosage, something totally unexpected happened. You see, I had been having a chronic cough for about five years. Mostly more like half cough/half throat clearing. Any time I exhaled through my mouth, the breath was interrupted by mucous in my throat. I lost much sleep most nights because of this condition. I had decided that it was likely sinus drainage, since there was no congestion in my chest, but nothing I had tried helped. But one day I just happened to notice I was not coughing/clearing throat nearly as much, and as a few more weeks passed, the condition completely stopped! I have since discontinued use of the clo because of finances, but the cough never returned in the – I don’t know, eight to ten months? – off the clo. I know one thing for sure, that any time I have any extra money, it will go to more clo. I’m hoping to try the butter oil blend too. It is a stretch for us, but I always know that it is money well-spent.


Naomi Snider June 24, 2011 at 1:33 PM

I meant to say that the clo was the only thing different in my regimen, so it HAD to be what helped. Just in case someone might wonder about that.


Patti June 24, 2011 at 2:33 PM

@Naomi – did you take the 3 tsp all together, or spread it over several doses?


Dana June 24, 2011 at 8:06 PM

That’s interesting. I just recently (and I mean in the past week) read a news story about a study that was done on low-income kids attending a clinic–they put them on cod liver oil and some kind of multivitamin supplement. They cut down on the number of upper respiratory infections in those kids by over 30 percent–and it’s a population known for high numbers of respiratory infections, asthma, etc.


cheeseslave June 25, 2011 at 9:05 AM
Beth@WeightMaven June 24, 2011 at 1:54 PM

Thanks … this is *really* helpful. I had been suspecting that noshing the capsules was a good way to under dose.


Sally Oh June 24, 2011 at 1:56 PM

Thanks, Naomi, for sharing that. It is exactly my and my son’s problem. I just bought a bottle of the blue ice royal bo/fclo blend. The price was a hurdle for me as well, but, hey, I love WAPF, I’m a chapter leader in Lexington and I’m giving it a go. If it gets rid of this cough, it is worth every penny!!!

The bottle says to take 1/2 teaspoon for adults of the mix. The WAPF website says 1tsp of fclo alone… any clue as to how much is adequate of the mix? I checked WAPF and the blue ice site and found no clarification on the issue.

Thank you!


Erica June 25, 2011 at 8:44 AM

Hi Sally Oh,

I’d say that if a serving of the CLO/BO blend adds up to 10,000 iu of vitamin A and 2,000 iu of vitamin D (could be 1 1/2 tsp), then you should be fine. Half of that does will be fine for children.


Nicole June 24, 2011 at 2:04 PM

I’m wondering if taking FCLO and eating ghee is the same?


Dana June 24, 2011 at 8:07 PM

Ghee is more like the butter oil than the FCLO. It’s still not as concentrated but hey, if you like ghee, more for you. :)


Nicole June 25, 2011 at 8:21 AM

Oh sorry, I meant to ask if ghee and butter oil are the same and if so, could you just take ghee and FCLO separately at home? But it sounds like butter oil is more concentrated than ghee and it might take a lot of ghee to match the benefits of butter oil. Is that right? Interesting stuff.


Sally Oh June 25, 2011 at 9:00 AM

We eat tons of butter and ghee so I think we are going to go with the FCLO alone in the future. I’ll be at the WAPF convention this year (yay!!!) and will get to talk to Dave about that when I stock up…! Can’t wait.


cheeseslave June 25, 2011 at 9:07 AM

From what I have read the butter oil is more concentrated than ghee but I have heard conflicting things; need to ask Dave. I’ll post when I find out.


cheeseslave June 25, 2011 at 9:09 AM

Oh and by the way, there is also one other distinction. Green Pastures’ butter oil is made from the cream from cows eating green grass. The same goes for Pure Indian Foods ghee.

As far as homemade ghee from regular butter or other brands of ghee, you don’t if the cream is from cows eating green grass. That is really important because then the ghee or butter oil will have higher levels of the fat soluble activators.


Beth@WeightMaven June 25, 2011 at 10:54 AM

One thing about ghee … because it’s heated, you lose the Wulzen factor (the anti-stiffness factor). But ghee retains the WAPF’s X-factor (vitamin K2).


Sarah Smith June 24, 2011 at 2:23 PM

In case it helps with the discussion of amounts, the WAP site says the following:
Please note that the fermented cod liver oil contains many co-factors that may enhance the body’s uptake and usage of vitamins A and D; in fact, many have reported results equivalent to those obtained from high-vitamin cod liver oil with half the recommended dose, that is ¼ teaspoon or 1.25 mL for children age 3 months to 12 years; ½ teaspoon or 5 capsules for children over 12 years and adults; and 1 teaspoon or 10 capsules for pregnant and nursing women.

Also, the ratio of CLO to butter oil recommended is 2/3 CLO to 1/3 butter oil. So to get up to 1 teaspoon of CLO, you would need to take 15 pills of the butter oil/CLO blend.


cheeseslave June 24, 2011 at 4:31 PM

Oh thank you for posting this! That makes sense.

As I said above, it is individual and we all need to listen to our bodies and take what feels right to us.

As far as the ratio of cod liver oil/ butter oil, Ramiel Nagel recommends taking it 1:1.

I really don’t think we should get too hung up about the exact ratios and amounts… I really just wanted to write this post for the folks out there, like my MIL, who are only taking a couple capsules a day and still experiencing health challenges like dental decay.


Patti June 24, 2011 at 2:25 PM

If we were to take this much CLO, we could not afford to buy the raw milk, grass-fed beef, pork and poultry, and other “real” food. I would love to take the dosage you recommend, but we cannot possibly afford to take that much. If we cannot take the 12 capsules per day (we take the blend capsules), is there any benefit to taking just 2 per day? I wish they weren’t so expensive!


cheeseslave June 24, 2011 at 4:32 PM

Hi, Patty,

This is not the dosage I recommend… I was just trying to figure out how many capsules you would have to take to equal the teaspoon that WAPF recommends.


cheeseslave June 24, 2011 at 4:33 PM

Oh and yes of course there is still benefit only taking 2 per day.

But clearly, my MIL thought she was just fine taking only 2 a day and she has really bad dental decay and bone loss. So for her, it is not enough.

This really is an individual thing, as I said above in the post. Some people will need more and some people can get away with less.


Patti June 25, 2011 at 4:24 AM

Thank you so much for all the info – it is a great help! I think we will continue to take the smaller dose unless we have some health issues, then increase the amount to try and resolve any problems. I am also resigned to the fact that we must switch back to the liquid……sigh,,,,,,,


Erica June 25, 2011 at 8:49 AM

Hi Patti,

The reason the WAPF recommends 1 tsp of CLO for adults is because not many adults consume special foods on a daily basis like grass-fed butter, organ meats, eggs, fish eggs, etc. If you consume some of these foods on a daily basis then you should be fine with your low dose of CLO. Organ meats are usually priced very low compared to muscle meats. Pastured eggs can be cheap, as well.


Erica June 25, 2011 at 9:02 AM

Another thing I forgot to mention,

Not too many people consume enough vitamin A and D even even when they consume enough butter. You would have to consume nearly 10 tablespoons of butter to even reach the RDA. This is why taking the recommended serving of CLO is one of the most easiest ways to obtain these nutrients. Also, unless you consume foods rich in vitamin D on a daily basis, like fish eggs and lard, then it would be quite hard to obtain enough of this critical vitamin. Muscle meats have very little if any vitamin A. Even some organ meats don’t have much vitamin A or D. You have to choose very wisely what foods to consume, concentrating more on nutrient density. This is what many indigenous people did. They saved special foods from the spring/summer months due to the significant increase in needed nutrients during the growing seasons. Even the lions in the wild go for the liver first because they know exactly what their bodies need.


ofthec July 29, 2011 at 3:48 AM

10 T of butter, oh YUM!


Sarah Smith June 24, 2011 at 2:32 PM

One way to save on the cost is to buy by the case. It does require saving up lots in advance, or getting some other likeminded people to split a case with you. But it saves $10/bottle!!

Also, while the flavor is not great, it is much cheaper to buy the liquid instead of the caps. We do seem to get used to it after awhile. My husband takes the “kid-tested” mint flavor which is a little bit sweet. I take the unemulsified mint, and my 4-year-old daughter takes the cinnamon. I do still think it is gross, but have found chasing with water immediately afterwards to be a big help.


cheeseslave June 24, 2011 at 4:33 PM

Great tips!


Kimberly June 25, 2011 at 7:17 AM

We have done this exact thing. We buy the liquid in large quantites after saving up for it for a while so we can get that discounted price, it does really help the price of each bottle and is the least expensive way to get it that we’ve found. We buy the butter oil the same way. We manage with the cinnamon emulsified taking it straight, chasing with water or milk, or mixing it with some applesauce for the kids. It still doesn’t taste great with the applesauce, but they know it’s REALLY good for them so they take it.


cheeseslave June 25, 2011 at 8:45 AM

I usually buy the cod liver oil and butter oil at the annual WAPF conference. Dave always gives a good discount there and he ships it to you so you don’t have to lug it home. I also buy in bulk online. You can freeze the bottles according to Dave.


Meagan June 25, 2011 at 8:51 AM

GOOD idea :) I will be coming this year. I have a feeling me and my mother will be doing some STOCKING up :) Do they all feature discounts?


cheeseslave June 25, 2011 at 9:12 AM

Most of them do, yes! You can go around and order what you like and they will ship it direct to your home.


Raine Saunders June 24, 2011 at 2:37 PM

Something else that should be kept in mind is that if your digestive system is compromised in any way, you can have issues digesting fats and oils, including CLO/FCLO. In January I started having some strange health issues where I was having panic-attack like symptoms that were keeping me awake for literally months. I couldn’t figure out why because I’ve been eating a healthy diet for 6+ years. Now I know that even though I cleaned up my diet, I never actually healed my gut properly because I was muscle-tested by three different people who told me I was not digesting the FCLO, period. Around the same time, I also had a blood test which showed my blood Vitamin D levels to be half of what they should be. I was perplexed because I had been taking 8 capsules daily and also eating lots of butter, raw milk, pastured meats/eggs, bacon, etc.

Since my digestion was likely still not functioning properly, this would answer for why I was taking so much FCLO daily and eating a balanced diet, but my Vitamin D levels were still low. Now I’m on GAPS and headed down the road to healing my gut and to being able to digest fats better, especially the FCLO.


cheeseslave June 25, 2011 at 9:13 AM

Wow, Raine, that’s amazing. I’m so glad you to hear that you are doing GAPS now!


Debra June 24, 2011 at 2:37 PM

Can you please address why you prefer cod liver oil to krill oil? Based on the research I’ve done so far, krill seems to have much higher antioxidant levels, doesn’t go rancid as quickly, and is more easily taken up by our cells due to the phospholipid form of its omega-3 fatty acids. Am I missing something here?


cheeseslave June 24, 2011 at 4:38 PM

We are not really looking for antioxidants here, we are looking for fat soluble activators, vitamins A, D, and K2. Cod liver oil and butter oil are the best sources. Krill oil is not a good source as far as I know.

This is what Sally Fallon Morell wrote about krill oil:

“Q: I know that fish oil is bad for us especially because there is too much omega-3 derivatives EPA and DHA. And this disrupts the balance between omega-3 and omega-6, which weakens the immune system right? You clearly mention on your website that you don’t recommend fish oil. But cod liver oil is a fish oil right? So the same reasoning applies to cod liver oil. It will disrupt the balance between the omega-3 and 6, which is bad. In this case, is it better to take the cod liver oil with some omega-6 rich oils like safflower or sunflower oils? Dr. Mercola, and others, recommends krill oil, what do you think of that?

A: We recommend cod liver oil to get adequate A and D. Using the high-vitamin cod liver oil or even the regular dose cod liver oil, you can get adequate A and D without overdosing on either omega-6 or omega-3. Also, the vitamin A protects the polyunsaturates from oxidation. Be sure to use only the brands of cod liver oil that we recommend.

The manufacturers of krill oil do not reveal how much A and D is in their oil, so I have to assume it is not much. So there is no reason to take krill oil.”



Debra June 24, 2011 at 6:34 PM

Thanks for the explanation. For myself, I get plenty of vitamin A in my diet (pastured butter, cream, eggs, beef, chicken, lots of yellow veggies) and I sunbathe and take vit. D supplements in the winter, so I look to krill for its antioxidants, Omega-3s and better absorption. If my diet changes, FCLO might become the preferred option.


cheeseslave June 25, 2011 at 9:21 AM

“The diets of healthy, nonindustrialized peoples contain at least four times the minerals and water-soluble vitamins, and TEN times the fat-soluble vitamins found in animal fats (vitamin A, vitamin D and vitamin K2–Price’s “Activator X”) as the average American diet.”

Dr. Price found that the people he studied in other countries were getting TEN times more fat soluble activators than the Americans of his day. This was in the 1920s and ’30s. Unless you are eating shellfish and organ meats pretty much every day, I doubt you are getting that much.


Dana June 25, 2011 at 9:29 AM

The yellow veggies will only make a difference in your vitamin A status as long as you are a good converter of beta carotene. I’ve seen a couple studies, one from the U.S. and one from the UK, indicating that somewhere between 40 and 50 percent of the population are *not* good converters. I have also heard that the human being’s ability to convert beta carotene has been exaggerated by governmental bodies to begin with. So beta carotene is very much an unknown quantity in terms of being a vitamin A source. And that’s in healthy people. If you have metabolic syndrome, type 2 diabetes, or hypothyroidism you can pretty much forget making the conversion. I’m unclear as to whether this includes those whose diseases are under control–again, an unknown quantity.

Best to eat plant foods for the beta carotene, which is still beneficial in its natural form–but stick with animal foods for the vitamin A. And the pastured cream I get only offers about 4% of recommended daily intake; I’m not sure about eggs. Beef muscle meat isn’t a great source though–the liver would be better.


Meredith June 24, 2011 at 2:57 PM

So is the WAPF agreed ratio for FCLO to BO 2/3 FCLO to 1/3 BO as Sarah mentioned above. This is what I have seen as well – at least on the Green Pastures or Dr. Ron site (can’t remember which one). I couldn’t find anything about it on the WAPF page. Any thoughts?? :)


cheeseslave June 24, 2011 at 4:41 PM

It depends on how much butter you normally eat and it also depends on how sick you are. See my comment above — Ramiel Nagel recommends 1:1 BO/CLO.


Erica June 25, 2011 at 12:53 PM

“and it also depends on how sick you are”

You are too funny, Cheeseslave. You probably mean deficient, right?


Ivette June 24, 2011 at 3:20 PM

Amy God bless you woman!!!, you seem so busy i dont even know or want to know how you keep up with all this writing…………

I thought to switch over to the capsules but if i have to take all those caps the hell with that i rather just stick to my morning Tulsi green tea with one teaspoon of cod liver oil and one tea spoon of coconut oil.

I also give…. well force my 4 and 2 year old to take the same oil in the same amount even though it says for them 1/4 teaspoon, most times i mix the cod liver oil in a morning smoothie for the kiddos but after reading “beautiful princesses take there cod liver oil” i have started to rub cod liver oil on my two daughters behinds…lol…they hate it, i do too…… it smells like CRAP!!!, my husband said to me “THESE GIRLS NEED A BATH!!!! but i told him it was the cod liver oil smell on the bum area i applied whooosh i gotta get a different flavor that does not smell so bad!


Jessica @ Delicious Obsessions June 24, 2011 at 3:24 PM

Good info.

I just recently started taking the GP fermented cod liver oil / butter oil mix (the gel stuff). I take what it says on the bottle, which is 1/2 tsp. I can’t afford to take more than that per day, as I need the bottle to last me the 3 months that is says it will. It’s a blessing that I was even able to afford one bottle. Maybe someday I can get up to the full recommended teaspoon, but for now, 1/2 teaspoon is going to have to suffice. Grocery dollars are tight and even though I am willing to pay more for a high-quality product, there is a limit to how high I can go. This is good info for the future though.


Julie D. June 24, 2011 at 4:06 PM

On Jun 24, 2011, at 1:07 PM, Julie Drassinower wrote:

> You recommend 1/2 teaspoon of CLO. The WAP site recommends 1 teaspoon. Why the lesser amount?

Response from Dr. Cowan:

i think 1 tsp is too much vit A if you are using fermented CLO TC

Sent from my iPad


cheeseslave June 24, 2011 at 4:18 PM

Hmm interesting…

So maybe they need to update the WAPF website?

I’ll ask Sally about this. I am pretty sure she said she takes at least 1 tsp per day of the fermented cod liver oil.


cheeseslave June 24, 2011 at 4:25 PM

I just looked it up…

On the WAPF site, it says we should take:

“Children over 12 years and adults: A maintenance dose of cod liver oil that provides about 10,000 IU vitamin A daily, obtained from 2 teaspoons of regular cod liver oil or 1 teaspoon of high-vitamin cod liver oil.”

On Dr. Ron’s website, it says:

Per two mL liquid:
Vitamin A* 3650 IU EPA (eicosapentaenoic acid) 300 mg
Vitamin D* 855 IU DHA (docosahexaenoic acid) 180 mg

Per two 500 mL capsules:
Vitamin A* 1825 IU EPA (eicosapentaenoic acid) 150 mg
Vitamin D* 425 IU DHA (docosahexaenoic acid) 90 mg

*Laboratory analysis of the vitamin content of our cod liver oil has given widely varied results, depending on the methodology used, and the numbers we have posted are estimates.

Let’s see…

So that’s 1825 IU of vitamin A per ml. (could be more, see disclaimer above)

1 US teaspoon = 4.92892159 ml

So 1825 x 4.9 = 8942 IU vitamin A.

Seems about right to me.


cheeseslave June 24, 2011 at 4:26 PM

Check my math, please! :-)


Julie D. June 24, 2011 at 4:29 PM

Maybe they have a friendly difference of opinion on this one. ??? :)


cheeseslave June 24, 2011 at 4:45 PM

:-) I don’t know!

I know Dave Wetzel likes to stay away from this topic altogether. Whenever we bloggers pester him to find out how much people should take, he always says he doesn’t like to talk in terms of “dosages” and “mgs”. He will usually say something along the lines of, “Most people take between a half teaspoon and a teaspoon. Some people find they need to take more. Depends on the person.”

His point is that these products are sacred foods and we should eat them as foods, not take them like drugs. I couldn’t agree more!

But I just wanted to write this post because I’m concerned about people like my MIL and FIL who thought they were doing just fine taking only 2 capsules per day of the blend. I really think they need to be taking more. Obviously since my MIL has bone loss (and my FIL has osteopenia).


Julie D. June 24, 2011 at 4:58 PM

There may be other things that they should be doing. You should have them do a phone consult with Dr. Cowan. BTW, after only 2 short months of following his recommendations strictly, my TSH is back at a normal level. I was surprised but happy.


Heather June 30, 2011 at 2:51 PM

I was recently told that I have a bit of osteopenia in my spine …. I am only 37 years old. I have a pretty good diet and over the past year have started eating more traditional food. I also recently found out that I am pregnant with my 3rd child so I am totally overwhelmed with what supplements I need to be taking. I am taking 2 teaspoons of FCLO every day along with a teaspoon of Butter Oil. I thought I read in the GAPS books that I also need to be taking some fish oils for the additional EPA and DHA. My kinesiologist tested me and said my body didn’t want my prenatal. I take a bunch of other supplements and eat well, but still not sure what else I have to do. I would also love to find out what Vit D supplements people take. Sorry for the long post ….. thanks in advance for any suggestions!


cheeseslave June 30, 2011 at 4:08 PM

Are you on the GAPS diet? That will definitely help with absorption of nutrients.

I would recommend lots of bone broth and homemade kefir!

Also, since you have osteopenia AND you’re carrying a child, I’d personally take even more CLO and butter oil.


Karyn June 30, 2011 at 4:24 PM

WAPF recommends not taking prenatal because they usually have synthetic vitamin A, which is toxic. Maybe that’s why your body doesn’t like them. But, being pregnant myself, I do feel strange not taking one.


Erica June 25, 2011 at 1:00 PM

Hi Cheeseslave,

Sally Fallon actually takes two teaspoons of CLO daily:

I remember she recommended that I take 2 teaspoons of high vitamin CLO a year ago since I was recovering from anorexia. I usually take about 1 1/3 of a tsp now since I have fully recovered. Sarah from the Healthy Home Economist blog takes about 1 1/3 tsp daily, too.


Julie D. June 25, 2011 at 10:34 PM

Hey Erica,

FYI—that link is from 2003—from before the fermented cod liver oil was available.


Erica June 26, 2011 at 4:50 AM

OK, Well you can contact Sally and see how much she actually takes. There might have been another High Vitamin CLO like Premier Quantum Norwegian Cod Liver Oil that she used anyways.


Linda June 24, 2011 at 4:38 PM

I went to see Sally Fallon Morel speak last Saturday in Northern Va. She talked about taking fclo and she did say 1 tsp a day. She puts it in a shot glass with a little water and shoots it down. I decided to try that and it works. It waters down the taste.


cheeseslave June 24, 2011 at 4:47 PM


THanks. Yes I do remember her saying that.

Was that the Fields of Athenry event? I bet you had a great time!


Julie D. June 24, 2011 at 4:59 PM

I guess they do have a difference of opinion on this one.


Linda June 25, 2011 at 4:30 AM

Yes and yes


Cheryl June 24, 2011 at 6:18 PM

I’ve been taking GP’s Blue Ice Cod liver oil and Butter Fat oil for several years now. I’ve only ever taken the orange and cinnamon CLO. I used to take 1 Tbsp CLO and 1 tsp BF/day. Per the below quote from the WAPF website, this should equal about 1 1/2 tsp FCLO and 1 tsp BF, bio-equivalence. This just about equals 1 Tbsp of the blend (1/2 tsp FCLO more actually).

“Please note that the fermented cod liver oil contains many co-factors that may enhance the body’s uptake and usage of vitamins A and D; in fact, many have reported results equivalent to those obtained from high-vitamin cod liver oil with half the recommended dose, that is ¼ teaspoon or 1.25 mL for children age 3 months to 12 years; ½ teaspoon or 5 capsules for children over 12 years and adults; and 1 teaspoon or 10 capsules for pregnant and nursing women.”

I did the math for GP products and getting the FCLO/BF separate vs an equivalent amount of blended for the same # of servings (2 CLO/1 BF vs 3 blended) is only a $1 difference – blended is $1 less. With the quantity discount (4 CLO/2 BF vs 6 blended), the blended is only $2 less. If that helps anyone. :)

I thought I’d mention what I do to completely eliminate any burping up of the FCLO, and mind you, I’ve had my gall bladder out. I always take my blended oils first thing in the morning, all at once, before eating (I find taking it with food much delays digestion of the oils).
I take a tsp at a time and chase each tsp with large swallows of either of the following mixes:
1. (my original chaser) 2-4 oz organic OJ, 2-4 oz Naked Juices Green Machine, 4 oz cultured yogurt,1 dropper full of Gaia Herbs Sweetish Bitters – stirred together.
This worked well, but was expensive and a lot more fructose than I really wanted to ingest. So I came up with my current chaser, incorporating some of the things I learned recently about how to increase stomach acid for improved digestion (from the book recommended on this site :) )

2. (current chaser that I like much better) 4 oz beet kvass, 4 oz cultured yogurt, 1 dropper full of Gaia Sweetish Bitters, splash of lemon juice, generous pinch of salt, and about 1/2 tsp of ginger/honey crystals stirred together well. (I added the lemon jce, salt and ginger after reading up ways to supplement decreased HCl acid from the book recommended on here).
I mix this up and take my oils with this before working on breakfast, and by the time I’m ready to eat, it’s usually been at least 1/2 hr since I took the oils.
Since I’ve been taking the oils this way I’ve not had a bit of trouble burping up the FCLO/cinnamon taste.
(apologies for how long this got!)


beth June 25, 2011 at 2:14 PM

I just started taking the FCLO and butter oil and I am burping it up like crazy. I will try your method of taking it in the morning but your chaser sounds complicated. Couldn’t I just chase it with some apple cider vinegar and water?


Cheryl June 25, 2011 at 6:42 PM

Definitely try it and see if it works for you, Beth :) Didn’t mean to make it sound complicated :) – I was trying to be thorough. lol

I found that using Swedish Bitters helped me a lot in digesting the CLO, but then I’ve also had my gallbladder out (years before I knew any better!).

I like to add yogurt or beet kvass because I have it :), for the probiotics, and to have something to dilute the taste of the bitters! :D I just threw in the other stuff (sea salt, ginger, lemon juice) lately because of reading on how it helps increase stomach acid which can speed up digestion (i.e. things don’t sit in your stomach for ages).

Would love to hear how the changes work for you! :)


John June 24, 2011 at 7:05 PM

Hi Anne Marie,

My son is 9 years old and has been taking 1 teaspoon of the liquid FCLO,1/2 teaspoon butter oil and 1 teaspoon Nordic Naturals Pro EFA Fish Oil. He also takes Thorne VitK2 and Vit D3
He has been taking the FCLO for a couple of years and before that the Nordic Naturals brand of CLO since he was a baby.
About a year ago he started having lots of nose bleeds sometimes on a daily basis – no one could work out why – we stopped the oils and his nose stopped bleeding after a few days but we still got the odd one – I restarted at a lesser dose and the same thing happened again.
I was wondering if you are in contact with Sally Fallon would you mind asking her whether in her experience she has heard of nosebleeds happening as a side effect of regular use?


cheeseslave June 25, 2011 at 9:24 AM

John –

I dont know about the nosebleeds but that sounds like too much.

Kids under 12 only need 1/2 teaspoon of FCLO per day, not 1 teaspoon.

They only need 1/4-1/2 teaspoon of the butter oil.

There is no need to take the fish oil.

If he is taking the cod liver oil and butter oil, he does not need the Thorne VItK2 and Vit D3. He’s already getting K2 and D3 from the CLO and BO.


Bethany July 31, 2012 at 7:36 PM

I know this is an old post, but I realized my son’s nosebleeds only happen on the days when I give him is FCLO. He is 3.5 and gets 1/2 tsp of FCLO/Butter Oil Blend. I am thinking he needs more K2. We eat a ton of grass fed butter and milk. My face also bleeds a lot if I am taking anywhere near a tsp. of the FCLO/Butter Oil Blend each day. It scares me thinking about taking it in pregnancy before delivery. I am planning to up my K2 before delivery, but I think I will stop the cod liver oil well before the birth.


Robin October 8, 2012 at 7:50 PM

From what I have read the symptoms of deficiency and the symptoms of having excess or toxic amounts of most nutrients are usually pretty much the same. Might pay to look into that.
Also it may be that you are missing other nutrients and/or that some of your bodies pathways are not working properly. Take an amount quite a bit below what causes you to get nose bleeds and look at the rest of your health and nutrition. When you get them sorted you should be able to increase your dose again, as will be able to handle it.


Sass September 16, 2013 at 1:02 PM

Hi, I was wondering what you meant when you said that your ‘face’ bleeds if you take anywhere a tsp of the FCLO/butter oil?
I’m aware that fish oils can thin the blood and vit K (in the butter oil) is a coagulent so wondering if the ratios of the blended product maybe unsuitable for some people, as it seems in your experience, and it may be better to have the separate products to work out a dosage that suits the individual.


fulan June 24, 2011 at 10:55 PM

I take maybe 1/2 tsp every few days… the liquid. It tastes horrible. Very expensive.. I got it from Tim Ferris’s book 4HB :)

It does “work” when I take it.


Jennifer June 24, 2011 at 10:59 PM

Good to know. I wondered about the difference in amount. I have both the gel FCLO/BO and capsule version, plus the plain BO capsules. I actually had been taking 3 combo caps plus 3 BO caps/day, just to try to “beef up” recently, but it looks like I need to double both, at least. As much as I prefer the caps to the gel, it looks like I might have to “endure” the gel a lot more often, just because it appears to be a much better bargain!


Sally June 25, 2011 at 6:54 AM

I stopped taking the FCLO butter blend about a week or two ago to see if I would notice any difference from not taking it. I was only taking 2 capsules a day, but within a week of not taking those 2 capsules a day my nails were brittle and chipping. I’ll be taking this supplemet again!


Meagan June 25, 2011 at 8:47 AM

This makes me think… how much butter should we be eating per day? I cannot afford to take the oil. I do buy Kerrygold butter though :)


cheeseslave June 25, 2011 at 9:28 AM

Kerrygold butter is good but it is not the same thing as taking the butter oil. Dave’s Green Pasture butter oil is from cream from cows eating rapidly growing green grass.

Kerrygold is grass-fed butter but remember Ireland does not have green grass all year long. So you really don’t know if you are getting spring butter or not.

I have been buying Kerrygold for a while but because I don’t know when it is produced, I’m switching to local grass-fed butter from Organic Pastures and Spring Hill Dairy here in CA.


Dana June 25, 2011 at 9:35 AM

I get a grass-fed (though light-temp pasteurized) heavy cream here that’s fairly local to me, and boy can I tell when they’ve been on good grass–the cream gets yellower! I ought to just make my own butter and be done with it.


Meagan June 25, 2011 at 6:15 PM

Thanks AnneMarie! I see your point, but Kerrygold specifies that it’s butter comes only from cows on summer pasture, so I don’t know what your comment is about.


Lynn August 9, 2012 at 5:45 AM

I live in the Republic of Ireland and can assure you that we do indeed have green grass all year long. In fact, this is why we have woeful summers. :( It still rains *all* the time, so the grass stays green. We’d all prefer to have lots of summer sunshine instead, like most other countries around the world. Sigh….


Erica June 25, 2011 at 1:23 PM

Hopefully this will help people out to see how much vitamin A is adequate:

“From the work of Weston Price, we can assume that the amount in primitive diets was about 50,000 IU per day, which could be achieved in a modern diet by consuming generous amounts of whole milk, cream, butter and eggs from pastured animals; beef or duck liver several times per week; and 1 tablespoon regular cod liver oil or 1/2 tablespoon high-vitamin cod liver oil per day.”



cheeseslave June 25, 2011 at 2:59 PM

Wow! Liver several times a week PLUS 1/2 TBS of cod liver oil per day (that’s about 1.5 teaspoons daily).


Erica June 25, 2011 at 3:03 PM

I know! Weston A. Price wasn’t kidding when he said that they consumed 10x the vitamins, which includes vitamin A.

So 5000 iu for the RDA X 10 = 50,000 iu daily of vitamin A.


Erica June 25, 2011 at 3:05 PM

Who really consumes that amount in a day?


cheeseslave June 26, 2011 at 8:31 PM

Yeah, nobody! :-)


Bryan - oz4caster June 25, 2011 at 1:42 PM

I’ve been taking a tsp a day of the plain liquid FCLO for the last couple of years and have had only one mild cold (well over a year ago), whereas before taking any kind of CLO I used to routinely get 3 or 4 colds every year. I cant’ be sure it’s just the FCLO, since I changed my diet about 5 years ago too, but I’m not going to quit to find out :)


Erica June 25, 2011 at 2:38 PM

Hi Cheeseslave,

Do you know how the Kerrygold butter is processed? Do they use slow, low heating methods to process the butter?


cheeseslave June 25, 2011 at 2:54 PM

Sorry, I don’t know. Maybe I will have to take a trip to Ireland to find out!


FarmerKimberly July 10, 2011 at 8:47 AM

Do you need a travel companion to Ireland. ;-)


KELLY June 25, 2011 at 5:06 PM

Does anyone know what the difference is btw the emulsified CLO and the regular CLO? Thanks!!


cheeseslave June 25, 2011 at 6:56 PM

They add soluble fiber to bulk up the product — this also makes it taste a lot better.


Isaac'sWife June 26, 2011 at 9:01 PM

I was just about to ask the same question…….sooo I am guessing that the amt of cod liver oil ratio is slightly lowered then take the fermented cod liver oil…… would that explain green pastures lower price on the product?


cheeseslave June 26, 2011 at 10:07 PM

I’m not sure… but that would make sense…


FarmerKimberly July 10, 2011 at 8:48 AM

So it is okay to take the emulsified or should we stick to the non-emulsified??? Which do you take?


Krissy June 26, 2011 at 10:18 PM

Does anyone know if Green Pastures uses organic farming methods for their butter oil products? I don’t see anyting on their web page that mentions it. Could you possibly do an interview blog article with Dave that covers stuff like this. Thanks! Could you also suggest to Dave that they start selling sample sizes for trial. I am thinking of starting CLO, I have never tried it. I also plan on giving it to my 4 year old. Small trial sizes would be helpful in figuring out what flavor will work best.


cheeseslave June 28, 2011 at 8:32 PM

Hi, Krissy,

I would be so shocked that I would drop over dead if I found out Dave wasn’t farming organically. Dave is one of these people who is so aligned with the principles of Dr. Weston Price, he has such high ethics, I can’t imagine him doing something like dumping pesticides on his land. Ever.

That said, I really NEED to do an interview with Dave about his butter oil and cod liver oil. He is a truly fascinating person.

I promise I will do a podcast interview as soon as I can get my new microphone and podcasting set up all good to go.

And wow, sample sizes is a great idea!! I will suggest it to him when I speak to him.


Bethany July 2, 2011 at 5:54 AM

thanks for the breakdown….right now we use the syringe that comes with the liquid so it’s easy to see how much you are getting


paisley July 2, 2011 at 7:55 PM

We take Twinlab Cod Liver Oil, Emulsified Norwegian, Orange Flavor. My kids swallow it happily. The kids take 2-3 teaspoons full a day. And the grownups take 2-3 tablespoons a day. Believe it or not, it was recommended to us for our daughter’s dyslexia. The two sides of her brain were not communicating properly with each other. And the Corpus Collosum, the part in between the two sides, is primarily made of DHA – found in, you guessed it, CLO. We were told that this is why so many kids are dyslexic. Poor nutrition.


BlackSheepPrincess July 3, 2011 at 1:46 PM

i’ve always done the capsules cause i am fearful of the taste of the liquid. is it hard to get down? is there after taste?


leighann July 5, 2011 at 8:25 PM

I’m getting ready to buy some CLO & butter oil from Green Pastures, but I’m curious about the other supplements you take and why you take them? I’m not currently taking any supplements other than probiotics and a whole-food vitamin C supplement.


cmh July 7, 2011 at 12:04 PM

this post really made me want to cry :( . Even taking the dosage on the bottle we are spending 400 a month for our family to take the cod and butter oil. There is no possible way we could afford to take these dosages!! Why is everything good so stinking expensive???


FarmerKimberly July 10, 2011 at 8:45 AM

I am with you on that one. I wish I could ferment my own cod.


Karen A. July 8, 2011 at 4:58 PM

I’ve never tried this but I think it’s time I should.


FarmerKimberly July 10, 2011 at 8:51 AM

I wish I could simply consume one bottle once per month instead of having to take it daily. I really don’t like fish smell and taste and when I take my teaspoon of the cod liver oil, I taste the fishy taste all day long. This makes me not take it every day.


FarmerKimberly July 10, 2011 at 9:00 AM

Is it possible to hide the cod liver oil in other food and still get the benefits? (By the way, I don’t count cod liver oil as a supplement because it is a real food, like olive oil or coconut oil, not a pill. But that is just me.)


Erica July 10, 2011 at 10:58 AM

Hi FarmerKimberly,

Yes, you can hide the CLO in food. Just make sure the food is cool or warm and not hot. You can even use a little in your homemade salad dressing :)


Erica July 10, 2011 at 11:02 AM

Hi FarmerKimberly,

You can take cod liver oil every other day or once a weel like Ann Marie. However, make sure that you still take the daily recommended dose. So if you take clo once a week, you need to take 2-3 tablespoons to match 1 tsp a day.


Erica July 10, 2011 at 11:16 AM


Also, you don’t want to consume a whole bottle of cod liver oil once every month. That is just too many polyunsaturated fats. If you go for once a week, be sure that you consume a lot less polyunsaturated fats that day since you’ll be consuming plenty with the cod live oil. In addition, be sure to consume a lot of nutrient dense foods throughout the week, like organ meats, grassfed butter, other animal fats, shellfish, etc.


RealFoodOutlaws July 18, 2011 at 2:32 PM

How much of the butter oil/FCLO combo (gel) should a pregnant woman take?


RealFoodOutlaws July 18, 2011 at 2:36 PM

I’m thinking 2 tsps. Anyone have any input?


Erica July 18, 2011 at 3:23 PM

Hi RealFoodOutlaws,

The WAPF recommends 20,000 IU of vitamin A and 2,000 IU of vitamin D from cod liver oil. Whatever does adds up to this should be good.


Erica July 18, 2011 at 3:26 PM



Rebecca August 8, 2011 at 3:08 PM

What is the recommended dose when taking the CLO/butter combo bottle?


David October 5, 2011 at 9:29 AM

Hi Cheeseslave,
You invited us to check your math, so I did. You said: “If you take 4 teaspoons per day, there is enough in one bottle to last 24 days.” I assume you are talking about a bottle of gel blend FCLO/HVBO. Jessica pointed out that she is sticking to the half teaspoon per day to make her bottle last 3 months. If each bottle contains 96 half teaspoon servings, your 4 full teaspoon usage will empty the bottle in 12 days — not 24. Are you in fact having 4 half teaspoons per day?
Also, Dave Wetzel confirmed that the gel is a blend of 2 parts cod liver oil to 1 part butter oil.


Bachelor of Engineering November 21, 2011 at 5:38 PM

I prefer to take squalene oil from cold water sharks.


Patsy Randolph January 16, 2012 at 7:02 PM

Is there a best time of day to take these? I have the cod liver/ butter oil blend


Colleen February 6, 2012 at 2:07 PM

Question– I’d like to start including the butter oil with my FCLO. Why is the bottle of JUST butter oil more expensive that the blend of CLO and BO?? Am I missing something? They both say ’96 servings’. I’m looking at taking the non-capsule type (gel or liquid). I’d buy the blend but would think it would cost more than the individual bottle since you are getting a daily dose of both. I must be missing something….


Cheryl February 6, 2012 at 5:48 PM

The blend is only 1/3 butter fat oil to 2/3 cod liver oil, so you’re not getting an equal amount of each, to start with. And, given that a full bottle of the blend is only equal to 1/3 a bottle of full strength butter fat (or even if it was a 1:1 mix it would still be just 1/2 a bottle’s worth), it makes sense that the blend would be cheaper. Personally, I’ve found that it’s actually more cost saving to buy the CO and BF as full strength seperate bottles, and do my own combination – that way I have more control of the ratios and the dosages I take each day. hth


Colleen February 7, 2012 at 12:45 PM

Thank you Cheryl! yes, that helps.


Denise April 23, 2012 at 5:52 AM

I am a little math challenged. We have just started taking the fclo liquid and take 1 tsp per day. Thinking of trying the fclo butter blend but not sure how much of that to take to get 1 tsp of the fclo. If we took 1 tsp we would be getting just 2/3 of fclo – how much more should we take to get the extra 1/3 tsp?


Denise April 23, 2012 at 10:06 AM

I said I was math challenged! Anyone can see that you should take 1 1/2 tsps!


Priya September 5, 2012 at 10:09 AM

Thanks for the information. We are all Hindu vegetarians at my house and want to consider taking FCLO. I heard that you also need certain amounts of other fats or minerals to balance those in FCLO, but I am not sure how to even ask the question b/c I heard this in passing and it stuck in my mind, but forgot the exact elements. Is FCLO safe for vegetarians? We do eat butter, eggs, and milk. Thanks very much.


cheeseslave September 5, 2012 at 2:41 PM


FCLO is not vegetarian. It’s made from cod livers.

The best thing to take WITH FCLO is grass-fed butter or grass-fed butter oil.

Eggs, butter and milk are not the same as eggs, butter and milk from grass-fed cows. Just make sure the cows are outdoors eating grass.


Priya September 7, 2012 at 5:02 AM

Thank you kindly for the response. I am aware that fish is involved and some in the family are willing to try FCLO. We mainly do not eat cows and other mammal meats. I was somehow concerned that a largely meat free diet would not be adequate to process the FCLO. We do take grass fed dairy and eggs. We also make ghee in the home and consume daily.
Thank you.


cheeseslave September 7, 2012 at 10:46 AM

@Priya Should be no problems processing the FCLO with a meat-free diet.


Jess September 11, 2012 at 3:59 PM

I am investigating the Emulsified Mint FCLO for my family and # 1 for my 2 year old…praying she will take this!!! My concern is giving her peppermint essential oil (in the mix) every day. I don’t think ingesting peppermint daily is good for the stomach and esophagus (though I know it is good for a tummy ache, but not daily). Any thoughts? Also, any advise on how much to take? Tips for getting toddler to take it? Thanks!


Torben November 7, 2012 at 2:18 PM

Just a small calculation:

The bottles are listed as 240ml, a teaspoon is 5ml that means with 1 teaspoon costs $1.02 at the regular price ($49/bottle); over $30/month.
You can, of course, order 12 of them, pay $39 per bottle and than enjoy this stuff dirt cheap at only $0.81 for 1 single teaspoon!!!

I honestly think the Green Pastures products, while presumably great in quality, are ridiculously priced.
Besides, ordering 12 just to get the $39/bottle will also set you back $468.

It’s hard to justify a product that costs $1 for a single teaspoon; especially because most people recommend this specific product on principal alone or because they have read how great it is. But for a product that costs 10 times as much as other products, I personally am not satisfied with comments that praise the product, because people who pay $50 a bottle or over $470 for 12 of them, cognitive dissonance kicks in, so I wonder if it’s not more cost-effective to buy a cheaper product.
The question is, if you buy CLO for let’s say $5 for the same amount of VLO (so only about 10%), would be Green Pastures product really be 10 times as good or more? Or would be only be twice as good?

Or, think of it the other way around? When we have “taking no CLO” on one side and taking “Green Pastures FCLO” on the other side, where – converning the benefits – would one fall when buying CLO for 10% or 20% of the price? Would the benefit be almost none (because of the processing of cheaper products) and therefore not being cost-effective? Or would one still get (let’s just pick a random number) 40% of the benefits and therefore people should not obsess about buying the expensive stuff and still get great benefits from taking the cheaper stuff?

It would be very interesting to have concrete informaiton about this, but I could not find information about this, yet. Most people just promote the Green Pastures products, which is understandable, but usually getting the best products also means getting the least cost-effective ones, so I wish there were more detailed and nuanced information about CLO out there.


Sophia December 26, 2012 at 6:23 PM

I understand that the safe dosage is 2 tsp of FCLO per day during pregnancy, which would be the equivalent to 3 tsp of the FCLO/BO blend. Would it be too much to take that amount during preconception? I plan to get pregnant in about 10-12 months and would like to start taking cod liver oil. I don’t currently have any health issues. Do you recommand that I take any other supplements? I am currently taking the USANA multi vitamins/minerals and was planning to stop taking those… As for eating, I try to follow WAPF’s recommendations as much as possible (broths, grass-fed beef, livers, wild fish, fermented vegetables). However, I have not yet been able to find a source of pastured eggs, butter or raw milk in Quebec (Canada). Raw milk is illegal here. I can find free-range organic eggs, but not pastured. Thanks! and thank you so much for the information on your website!


Noah January 7, 2013 at 8:27 PM

Thank you.

I thought I was taking too few.




Eric Fleming January 14, 2013 at 9:33 AM

I have read all the comments on this blog/site and there seem to be 2 seperate opinions that cloud the real importance of the blog/site. If the product works then it works no matter what the costs is. Don’t let the cost of the product add or take away from what it does for your body. If it works and you do not want to or can’t afford to buy it then say and accept that. If the product does any of the good that the blogs say I would be happy to pay the price. Some of the conditions it is said to help is the bone loss associated with gum disease. I have payed specialist a lot more that a years supply of this product and I sitll don’t know if the treatments will fix my problem. Think of the cost of medical treatment that could be prevented IF this product works.


David January 14, 2013 at 9:47 AM

@Eric. I truly find that the product works and is well worth the price. One of the chief values I find is that it really ramps up my temperature. This is good news as I have been working on getting my basal resting (first morning reading) temperature up to 37C (98.6F) for a year now. My metabolism (and temperature) is finally nearing that point, and whenever I have had extra FCLO at night, my temperature is very noticeably higher in the morning. As I understand it, our bodies are designed to run completely healthfully at 37C or very close to it, so anything that contributes to revving up the temperature and metabolism is very welcome.


Kortney January 25, 2013 at 12:44 PM

I’m new to this and have a question. Are you just taking the CLO because of it’s hi amounts of Vitamin A & D? Or is there another reason for taking the CLO. Could you not just take Vit A and Vit D? Does that make sense? Thanks for the help!!


Karen April 25, 2013 at 1:52 PM

Ann Marie,
I have a question that maybe you can clear up. On the WAPF website, under the “Diet for Pregnant & Nursing Mothers”, it has an important warning at the bottom of the page: “Cod liver oil contains substantial levels of omega-3 EPA, which can cause numerous health problems, such as hemorrhaging during the birth process, if not balanced by arachidonic acid (ARA), an omega-6 fatty acid found in liver, egg yolks and meat fats. Please do not add cod liver oil to a diet that is deficient in these important animal foods. It is important to follow our diet for pregnant mothers in its entirety, not just selected parts of it.”

I did not see anywhere where they list how much omega-6 fatty acid you should be putting in your diet along with the FCLO. I usually try to eat 2 pasture raised eggs a day, and depending on what we’re having for dinner sometimes meat, is that enough to offset the omega-3 EPA?


hillaryt April 25, 2013 at 4:52 PM

Oh Dear! I just read this after having ordered the Blue Ice FCLO capsules … 120 capsules and if I’m needing 8/day this means that the bottle will last me 15 days!!! NUTS!!! Looks like I will have to go forward with the liquid form if I want to continue with this. Question: How long would a bottle of liquid FCLO last for 1 person if I take a teaspoon a day, rough estimate? Also if I am taking 1000 IU of Vit D per day as well as FCLO would it still be effective to take 4 caps instead of 8? What flavor liquid would anyone recommend?
Thank you for the info!!!


Michelle April 26, 2013 at 6:33 AM

You say taking the blend you get 1/2 tsp fclo and 1/2 tsp butter oil but the blend is actually 2/3s fclo and 1/3 butter oil.


Ann Marie Michaels June 25, 2013 at 6:36 PM

Thank you!


Corrina June 25, 2013 at 4:38 PM

12 a day??? That’s going to add up!$$$$$ if I am paying $69 bucks per bottle that lasts 5 days. I am looking at $414+dollars (more with shipping etc) a month!!!!! Crazy!!! I rather use my dental insurance. Sadly enough.


Ann Marie Michaels June 25, 2013 at 6:34 PM

You’d be better off buying it in the bottle — not capsules. Cheaper that way.


javier August 10, 2013 at 9:26 AM

does green- pasture ship to europe?
or, is there big difference with CLO only, not fermented?


Torben Deumert August 11, 2013 at 2:12 AM

You can get CLO from Green Pasture in Europe. The Weston A. Price Foundation has a page where shops in Europe are listed (look between the article and the comments at

I am from Germany and get mine from Q Naturals (, which is located in the Netherlands and one of the listed shops. I don’t have any experience with the other sources listed on the WAPF site, but I would assume that they are all legit, so just choose the one you like most.


Vera Dudmanova February 14, 2014 at 6:02 AM

Dear friends,
I would have one question. I am big fan of NT, WAPF, dr. Price etc. I wonder if fermented cod liver oil shouldnt be called rather raw instead of fermented. I do understand that the process which help to get it out of the raw liver tissue is fermentation but is the final oil somehow different then raw oil? I understand it has enzymes, doesnt go rancid so quickly but what is the difference between “raw” and fermented oil? Are there any molecular changes conected with fermentation? (for instance sugars can turn into acids, but how about oil?


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Elizabeth July 20, 2014 at 8:41 PM

I am familiar with WAP research and more recently, books like Ramiel Nagel’s Cure Tooth Decay; (I own that one). I guess I feel confused about why the cod liver oil has to be fermented. Why can’t someone buy butter oil and also take regular (unfermented) cod liver oil for the two “foods” to work synergistically for health, tooth/bone strength, etc? It seems like taking good ol’ fashioned cod liver oil and eating grass-fed butter would confer similar benefits than buying these super-expensive supplements….


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