Iodine is needed to make thyroid hormones, which are necessary for maintaining normal metabolism in all cells of the body. Where is it found? Seafood, iodized salt, and sea vegetables—for example, kelp—are high in iodine. Processed food may contain added iodized salt. Iodine is frequently found in dairy products. Vegetables grown in iodine-rich soil also contain this mineral.

In what conditions might iodine be supportive?

• fibrocystic breast disease
• iodine deficiency-induced goiter