Take 500 mg two times daily and if you have an iodine deficiency take Kelp, 1 baby spoon 1x day. ??? There is evidence that soy products interfere with the absorption of thyroid hormone, so if you are taking thyroid hormone medication, talk to your doctor before consuming soy products. ??? Eat antioxidant foods, including fruits such as blueberries, cherries, and tomatoes and vegetables.