By Lace / April 5, 2018

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​Fermented Cod Liver Oil: Green Pastures Review

​​​Wondering if fermented cod liver oil is for you? Fancy a bit of green pastures cod liver and butter oil blend? Here at Frugal by Nature, we've tried and tested it. Smelt it and tasted it and put it to the children to try too. Here, I share our experience to help you figure it all out. Before you part with your hard earned cash.

​Green Pasture's Fermented Cod Liver and Butter Oil

fermented cod liver oil

Product: Green Pasture Blue Ice Fermented Cod Liver Oil and Butter Oil Blend Capsules

Cheapest place to buy: Amazon

Size: 120 capsules = 60 servings @ 2 daily

Price: Around £34/ $40

​My Rating: ​

Product Overview

"Blue Ice Royal blend capsules contain two-thirds fermented cod liver oil and one third X-Factor Gold Concentrated Butter oil. Fermented cod liver oil is made in small batches with extraordinary care. We ferment livers from fish that have been exclusively wild caught in the Bering Sea and Aleutian Island regions of Alaska."

This product is described as a raw, unadulterated, whole food with no additives. Green pastures boast frequent 3rd party testing on the product to ensure purity. Source of vitamin A, D and K2. 


Fermented cod liver oil, raw butter oil concentrated through centrifusion, unbleached beeswax (as thickener) plant cellulose (capsules). Contains cod (Gadus macroephalus Pacific cod), Milk.

Suggested serving is x2 capsule daily.


  • ​Raw wholefood
  • Source of vitamin A and D and K2
  • ​Contains MILK, not suitable for vegans or dairy free folk
  • 3rd party tested

​First Impressions

green pasture blue ice capsules

Firstly, the bottle says the cod liver in the product comes from a fishery. An independently certified to MSC standards for well managed and sustainable fisheries. A fishery. This isn't exclusively wild caught as the product deception on Amazon... Conflicting information but clearly stated on the label, nevertheless.

The bottle is dark to protect the liver oil from light and contains large, smooth capsules. I find the capsules easy to swallow with water but they leave a funky taste in my throat. Taking with food significantly reduces said aftertaste, phew!

​On opening a capsule to give to my children, boy! It reeks. It smells... well, like fermented fish. Very pungent. My children don't find the gel palatable at all but they just about tolerate it if it's covered in cinnamon. ​​Maybe the cinnamon liquid version would suit em better.

​I feel our dental health has benefited since taking these. Although it must be said, we are combing this product with Ramiel Nagel's Tooth Decay Protocol.


  • Fishery caught?
  • Large, smooth capsules​
  • Easy to swallow
  • ​Take with food
  • Gel is smelly. Super smelly.
  • ​Promotes dental health

​Can't hack the smell or taste of fermented cod liver oil? Check out my review for quality Extra Virgin Cod Liver Oil instead.

Pros & Cons of Fermented Cod Liver Oil

  • Easy to take
  • People swear by GP blue ice combo for positive results with remineralising teeth
  • Natural source of vitamin A, D
  • Combined with high vitamin butter oil it's essentially two products in one
  • Recommended in Cure Tooth Decay by Ramiel Nagel (it's  brilliant!)
  • Lots of positive Amazon feedback
  • Pricey
  • It smells. Really smells.
  • ​Packaging states wild and fishery sourced, which is it??
  • The aftertaste and fish burps if you're unlucky like me!

​The Verdict

fermented cod liver oil

Essentially being two products in one, the idea of Green Pastures Blue Ice is a great one. ​I feel it represents good value for money. What I am not so keen on, is the mixed information about how the fish are obtained. That said, ​I chose to try Green Pastures Blue Ice because hundreds of customers rated it with consistently positive reviews. After trying it, I do feel I've benefited from taking it and I would buy again. ​​​

​​My biggest mistake was opening these capsules, they are pungent! Taking fermented fish oil in a capsule makes it much more palatable. For children, I would recommend a flavored gel. I'll be looking into the cinnamon version. 

​​Yours in fermented fishiness,



Any thoughts on Green Pastures Blue Ice? ​Have you tried this product or got a personal review to share? Let me know, I'd love to hear from you.

About the author


Wife, mother and natural health and wellness enthusiast. When I'm not dabbling in natural stuff, I like to eat brie with onion chutney and mull over a good "coincidence" theory. Cooking up a nutritious storm, books with real pages and being barefoot are a few of my favourite things.

  • Lee Ann says:

    Thank you for this information.
    I am glad I came across this. My daughter has had issues with her teeth being very sensitive since having to have her jaw wired shut (she had to have her impacted wisdom teeth removed and her jaw was broken during the process), for 2 months, so I am not sure if this was the cause, but I really want to find a product that actually DOES what it says.
    I can not wait for her to try this, and I really hope it works for her and gives her some relieve.
    Thank you

    • Lace says:

      Hi Lee Ann, I’m so sorry to hear what your daughter had been through, sounds really tough. It’s certainly not too late to improve her dental health and starting her of fermented cod liver oil would be an excellent move. If she has any pain I’d like to recommend adding lugols 5%,iodine either applied directly to the tooth/teeth in question or brushing/swishing with a few drops. It’s fantastic for dental pain and killing infection. All the best to you both. 


  • I couldn’t live without my fermented cod liver oil! Thanks for the review! I take it as part of my daily regime. I will certainly be trying out this brand next time I need to replenish my supply.

    • Lace says:

      Ah, another fan of cod liver oil, fab! Which brand are you currently taking Steven? When you restock if you do decide to try Green Pasture I’d love some feedback. Hope to catch up with you soon.


  • AJ says:

    Cod liver. Very interesting. The smell itself I’m sure is weird, but for the benefits I believe its worth it hands down. Even though they are a bit pricy, I think thats typical but also normal, and from what your saying, super worth it. Great post.

    • Lace says:

      Fermented cod liver oil is what the Vikings swore by for good health! I’d agree with you that the benefits of taking it, despite the slight pong,it’s definitely worth the price.

      Thanks for stopping by AJ.

  • Jackie says:

    Hi Lace!!! Just went through your website, loved the name FRUGAL BY NATURE. When you are taking those Cod Liver Oil capsules, have you noticed any reactions on you or your children, like heartburns or smelly burps? Some years back, I tried a similar product and my body didnt adjust to it well, I even developed a very disturbing throat swelling after a couple of weeks of taking the capsules. Where can I find more info about these ones? Thank you!!!!

    • Lace says:

      Hi Jackie! Thank you! I’m sorry to hear you had a bad experience with cod liver oil in the past. What brand did you take previously? Fishy burps are an issue for me with Blue Ice but many others seem not to have that problem. As mentioned in the post, this problem is overcome if I don’t take on an empty stomach. For more information on Blue Ice head over to Amazon or Green Pastures website. If there’s anything else I can help with just shout 🙂 

  • Tammy says:

    Thank you for this Blue Ice Royal blend capsules review. I’ve tried many fish-type supplements and always have the dreaded fish burps, but I could use these for possible better eyesight? I have readers all over the house and would love a natural way to improve my closeup vision. I miss the 20/20 days! Better immune function is also a plus, thank you!

    • Lace says:

      Hey Tammy, you’re welcome. What brands of fish oil have you tried? Fish burps were a downside to Blue Ice for me but the benefit of the oils outweigh that I think. If you want to support your eyesight this product is a great option. Better immune systems are definitely a bonus too.

      Thanks for your comments, I love hearing from my lovely readers 🙂

  • Darren says:

    These capsules sound fairly expensive, but then that’s pretty common in health and wellness products.

    I’m looking for something for joint pain, such as my back and an arthritic knee from an old injury that’s been playing up a lot of late.

    These capsules sounds really good actually. If they help, then they’ll be well worth the price tag. I’ll give them a try and see how I go.

    • Lace says:

      Hey Darren, sorry to hear you’re suffering pain at the moment. Indeed fermented cod liver oil is great for joint health and arthritic pain. If you haven’t already look into emu oil and osteopathy too as I do believe they may be able to help you also.

       Like most things that are good for us, these are a little costly but if we are healthy then life becomes cheaper because we’re not slaves to big pharma and toxic fake food. I’d love to hear how you get on with the blue ice fermented cod liver oil when you’ve tried it. 

      I hope you are pain free soon,


  • Amazon LaShaun says:

    This was a good review. As expected, the price found it’s way under the negatives. It seems like that happens with just about everything that is healthy these days, but I can’t ignore that 79% user approval rating. It just might be worth it. We only get one body, after all. Keep up the great work.

    • Lace says:

      Thank you for your comments LaShaun. With so many toxic products being subsidised by government it certainly makes healthy options seem extra expensive. The customer reviews certainly speak for themselves and you’re absolutely right. Our body is our home, if we look after it and it’ll look after us 🙂 

  • I am always looking for new natural supplements to help with health issues. I have not heard of this product, until now. It looks very interesting, especially for teeth help. I am sure we should all look at it for teeth re-mineralization. I will definitely be checking it out.
    Thanks for the great review.

    • Lace says:

      Hey Curtis, I’m glad you found the review useful. Fermented cod liver oil has great feedback when it comes to remineralising teeth and improving health. I hope you enjoy the benefits of using this product. Thank you for your stopping by!

  • Penelope says:

    This might sound a little gross, but do fermented cod oil supplements leave you with really nasty burps? I was trying to think what the negatives would be for this supplement and that’s honestly the first thing that came to mind. The benefits sound pretty undeniable, though – I know people who swear by this stuff.

    • Lace says:

      Yes, Penelope, the fermented cod liver oil does give a case of of the dreaded fish burps. Take them with food and you’ll be reaping the benefits with the fishy aftertaste! It’s really great stuff. Are you currently taking a fish oil supplement?

  • jackie says:

    Another great post hun x

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