Glucosamine hydrochloride, 1g

Glucosamine (2-Amino-2-deoxy-glucose, Chitosamine) is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, also presents in the shells of shellfish, animal bones, bone marrow, and fungi. Glucosamine is commonly used as a treatment for osteoarthritis, although its acceptance as a medical therapy varies.