Mineral Balance Support. Mineral Supplement. Gluten Free. Non-GMO. Guaranteed Quality Laboratory Tested. Trusted Quality For Over 30 Years. Suitable For Vegans. Potassium is an important electrolyte that supports the balance of minerals in the body. Essential nutrient for normal functioning heart, kidneys and nervous system. 10% Free. No added Sugar, Salt, Yeast, Preservatives, Artificial Flavors or Colors. 21st Century's Potassium is highly bioavailable and helps regulate water balance within the body. Studies have shown potassium works to control the activity of the heart muscle, nervous system and kidneys. Unconditionally guaranteed for purity, freshness and label potency. Manufactured in a cGMP facility under the strictest standards for product quality, including potency and purity.