Cod liver oil
Cod oil / fermented cod liver oil · Foundation
Fish oil that also carries preformed vitamin A and vitamin D, which is the point and the catch.
What the evidence says
The omega-3 fraction has the same trial base as fish oil (triglycerides, modest cardiovascular signal). The vitamin A load is where brands differ by 10x and where the risk lives.
What studies used
Labels commonly list 1 tsp or 1-2 softgels providing roughly 500-1,000 mg combined EPA+DHA plus vitamin A and D amounts that vary a lot by brand.. With a meal that has some fat..
Reported from published studies and product labelling — a record of what was used in research, not a recommendation. What is right for you is a conversation with a clinician.
Watch out for
- Vitamin A adds up across products and is a concern in pregnancy at high intakes
- Check the label's vitamin A and D per serving before stacking with a multivitamin or D3
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