Few people realize that glucosamine is actually a combination of the amino acid glutamine and the sugar glucose. It is found primarily in joint cartilage. The body incorporates supplemental glucosamine into molecules called proteoglycans, which are part of joint cartilage and work to maintain the integrity of the joint and repair damaged cartilage. Research shows that glucosamine stimulates the generation of new cartilage by activating cartilage-producing cells known as chondrocytes. As a result, and as numerous studies confirm, glucosamine can help to alleviate the signs and symptoms of the joint wear and tear that can occur with heavy training. In fact, one study showed that glucosamine was as effective as ibuprofen for alleviating symptoms of osteoarthritis in the knee.
Curcumin is the active ingredient in turmeric, which is a spice used in many curry dishes.