Glucosamine plays a significant role in maintaining joint health by supporting the repair and maintenance of cartilage. It is often used in dietary supplements to alleviate symptoms of osteoarthritis and reduce joint pain. As a naturally occurring compound, glucosamine helps to maintain joint fluidity and lubrication, which can result in improved mobility. While studies show mixed results on its effectiveness, many individuals report subjective relief from joint discomfort when supplementing with glucosamine.