Glucosamine and chondroitin are structural components of cartilage, the tissue that cushions joints. Both occur naturally in the body. Within the joints, cartilage undergoes a constant process of breakdown and repair.
However, to be properly maintained, the building blocks of cartilage must be present and available. By taking glucosamine and chondroitin joint supplements, more of the building blocks of cartilage may be available for cartilage support.