All values are derived from the USDA National Nutrient Database for Standard Release 17, except
cod liver oil, which is derived from the information provided by
commercial manufacturers.
Thus it is likely that those who avoid
commercial vegetable oils and minimize omega - 6 consumption, while emphasizing intake of nutrient - dense animal fats like butter and
cod liver oil, would have iodine requirements much lower than 1,000 mcg per day, and would be able to meet their iodine requirements with a diet of whole foods, especially one containing sea food.