Supplement your iodine intake by using regular iodized table salt in your foods or taking iodine supplement tablets, recommends the American Thyroid Association. Some multivitamins also contain iodine. Foods that are rich in iodine, such as dairy products, meats, seafood and eggs, can also help regulate your levels.
Your thyroid depends on iodine to produce key chemicals and hormones, notes the American Thyroid Association. Symptoms of iodine deficiency include an enlarged or swollen thyroid, hypothyroidism, which can negatively affect your metabolism and cause weight gain, and some pregnancy-related problems. However, getting too much iodine in your diet can also cause health problems.