A nutraceutical is a food or food component that claims to have health benefits, including treatment and prevention of disease. In 1989, Stephen DeFelice, M.D., derived the term "nutraceutical" from "nutrition" and "pharmaceutical." It's used as a marketing term. Glucosamine, chondroitin, and MSM are popular dietary supplements that are touted as beneficial for joint health.As defined by Congress in the Dietary Supplement Health and Education Act,...