D-Glucosamine sulfate potassium is made up of an amino salt that is produced naturally by the human body (glucosamine sulfate) and potassium, a metal involved in several key body functions. Glucosamine sulfate is found in the fluids around the joints and in connective tissue. Potassium is important for regulating electrical activity in muscles, including the heart. This product is lab-tested for purity. D-Glucosamine sulfate potassium helps support the joints and the bones, as well as promote overall health and wellness.* It may also support heart and cardiovascular health.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.