Would the extent to which iodine is necessary be dependent on the amount of PUFAs you intake?
Iodine comes "with" a large amount of PUFAs in the form of fish.
When you go farther and farther inland, there is less PUFAs and therefore a less of a need for iodine... Still a need but less because of the small amount of PUFAs. Most of the fat would be saturated which is less prone to perioxidation. They are very stable.
When you're iodine deficient and you eat a lot of PUFAs they are easily degraded.
Does this make sense? Does iodine, among other things like selenium, protect us from lipid perioxidation?
This is ignoring things like fluoride and bromide that mess with iodine intake. I would imagine that the levels of goitrogens in things like plants would be offset by the levels of iodine in the soil.
I blame PUFAs. Any thoughts? What do you guys think?
Feel free to tell me I am dead wrong.
Personal anecdote: I was taking quite a bit of fish oil, while eating pretty strict paleo, but I don't think I was getting enough iodine and I think I was feeling the effects of lipid perioxidation. Think is the key word there. I can't do much about the water supply here at school which probably has a ton of fluoride and other junk and I wasn't using salt with iodine in it. I naively avoided seaweed and ate lots of vegetables which clearly could not counteract the fish oil I was taking. I wasn't overdosing on fish oil, though. I stopped taking fish oil and starting using iodized salt and feel much better. Yes, I was dumb, don't let that happen to you.
Disclaimer: Might not have been the best fish oil, I don't want to scare you. Something like fermented cod liver oil would probably be much much better.
So the lesson here is, when you're taking fish oil or any PUFAs for that matter make sure your iodine levels are good?