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Ray Peat spoke about the problems with fish oil for decades: “In declaring EPA and DHA (the omega-3s) to be safe, the FDA neglected to evaluate their antithyroid, immunosuppressive, lipid peroxidative (Song et al., 2000), light sensitizing, and antimitochondrial effects, their depression of glucose oxidation (Delarue et al., 2003),... show more
30,385 views • 1 year ago •via X (Twitter)
7 Comments

Too many people are still stuck on the 3:6 ratio, as in, how hidden your oxidative damage is

And the idea that omega-3 is there to fix the inflammation from omega-6.

And doctors have thought I was crazy when I discovered it was fish oils giving me heart palpitations.

I wonder how many cases of this there are out there.

Thoughts on Flaxseed Oil? Or what oil would be best? If any-- for systemic body function

I think it's best to minimize all polyunsaturated fats. Butter, tallow, refined coconut oil, cocoa/cacao butter are good fats.

You’re right it seems like fish oil is one of those things pushed onto most as a supplement staple but we need more research into how it affects the thyroid. There’s definitely more nuance to fish oil than the mainstream narrative suggests. “Effects of omega-3 on thyroid function tests in healthy volunteers,” noted a significant increase in TSH after omega-3 supplementation, which could indicate a compensatory thyroid response.
