What Is It?
An essential element we need iodine to make thyroid hormones and control metabolism. Since our bodies do not produce iodine, we must get it from out diet or supplements.
Where Can You Get It?
Salt that has been iodized is your best source. You can also get iodine from seaweed, certain fish like cod and tuna, diary products like milk and yogurt and grains like breads and cereals. For adults, 150 mcg a day.
Consuming large amounts is unsafe and can lead to thyroid problems, also, when iodine is used directly on the skin, it can cause skin irritation.