Glucosamine is a naturally occurring compound found in the body, primarily in the cartilage of joints. It plays a key role in maintaining joint health by supporting the structure and function of cartilage, helping to keep joints lubricated, cushioned, and flexible. As we age, the natural production of glucosamine decreases, which can lead to joint pain, stiffness, and reduced mobility. Supplementing with glucosamine can help alleviate symptoms of osteoarthritis, improve joint function, and reduce inflammation, making it one of the most popular ingredients in joint health formulations.