Potassium Iodide (KI) is a compound that contains Iodine, a nutrient necessary for normal thyroid function. Iodine in the form of Iodide is an integral part of thyroid hormones, which regulate cellular metabolism and energy production. NOW® Potassium Iodide Plus also supplies Potassium, a mineral that is essential for the maintenance of healthy water balance and whole body pH.* Iodine (from Potassium Iodide)- 225 mcg Sodium (from Sodium Alginate)- 5 mg Potassium (from Potassium Chloride and Iodide)- 99 mg Sodium Alginate- 100 mg |