Natural Dietary Supplement. 99 mg per caplet. Nerve & muscle health. Quality Guaranteed: This Top Care product is laboratory tested to guarantee its highest quality. Your total satisfaction is guaranteed. Questions? 1-888-423-0139. Potassium is an essential mineral required for proper nerve and muscle function. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease).