Vitamin A is a Vitamin D antagonist, so the two must be in proper balance. The ideal ratio seems to be around 4:1 but there are individual variances. COD Liver Oil is one good way to keep the balance - I use the green pasture's brand which is also fermented.
The best way to get vitamin A is actually not through carrots or vegetables, but animal foods and butter - the body does a piss poor job of converting:
"First, vitamin A is only found in animal foods. It’s a myth that plant foods are high in this nutrient. Instead, fruits and vegetables are high in a family of phytonutrients called carotenoids. The body must convert three of these compounds—beta-carotene, alpha-carotene, and beta-cryptoxanthin—to vitamin A. But in humans, this conversion is quite inefficient, with about
10 to 20 molecules of carotenoids needed to make one of vitamin A. In addition, 80 percent or more of natural vitamin A from animal sources is absorbed, but only three percent or less of carotenoids from plant foods are absorbed."www.philmaffetone.com/vitamin-a-and-the-beta-carotene-myth
How amazing is it that the animals convert it and make it bioavailable for us?
I thought I'd put this out there since almost everyone here is deficient in these fat soluble vitamins anyways. These deficiencies often lead to poor outcomes in health so it has to be addressed.
Post Edited (StealthGuardian) : 10/9/2013 1:35:51 PM (GMT-6)