How much nori, dulse, or arame approximate the recommended daily allowance for iodine? Dairy milk supplies between a quarter and a half of the daily iodine requirement in the United States, though milk itself has little native iodine. The milk iodine content is mainly determined by factors like the application of iodine-containing teat disinfectants. The iodine residues in milk appear to originate mainly from the contamination of the teat surface. The teats are sprayed or dipped with betadine-type disinfectants, and the iodine just kind of leaches into the milk.
Too bad most of the plant-based milks on the market aren’t enriched with iodine, too. Fortified soy milk is probably the healthiest of the plant milks, but even if it was enriched with iodine, what about the effects of soy on thyroid function? It’s funny that when I searched the medical literature on soy and thyroid, this study popped up. A cost-effective way to train residents to do thyroid biopsies. Just stick the ultrasound probe right on top and go to town. It turns out that on ultrasound your thyroid gland looks a lot like tofu….