Glucosamine Sulfate is a dietary supplement to support connective tissue and joint functions. Glucosamine is an amino sugar normally formed in the body from glucose. It is the starting point for the synthesis of glycosaminoglycans (GAGs), including hyaluronic acid, a main constituent of joint fluid. Glucosamine supplementation supports the thick gelatinous nature of the joint fluids, joint hydration, and flexibility as well as the function of joints, spinal discs and other connective tissues