If ever there was a nutritional case to be made that life originated in the ocean, iodine is evidence of it. Iodine is a nutrient that all animals need for life, and it can be obtained only through diet. Iodine is essential for a healthy thyroid -- the gland that regulates metabolism. An underactive thyroid is associated with low energy, poor memory, depression, ADHD, migraine, weight gain, infertility, breast disease (including cancer), infection, and heart disease.
Best Sources:Seaweed, fish, clams, shrimp, sardines, eggs, grass-fed meat and milk, potato skin