Food > Iodine
Helps to metabolize excess fat, needed for a healthy thyroid gland.
Symptoms of Deficiency ∞
Fatigue, neonatal hypothyroidism (cretinism), weight gain.
Include iodized salt, seafood, saltwater fish, and kelp, asparagus, dulse, garlic, lima beans, mushrooms, sea salt, sesame seeds, soybeans, spinach (but see Comments, below), summer squash, Swiss chard, turnip greens.
(comments were omitted, and I don't know the source of this list)