Is naturopathic medicine effective in the treatment of arthritis?

Glucosamine is a natural compound that is found in healthy cartilage. _base_d on human research, there is good evidence to support the use of glucosamine sulfate in the treatment of mild-to-moderate knee osteoarthritis. Most studies have used glucosamine sulfate supplied by one European manufacturer (Rotta Research Laboratorium) and it is not known if glucosamine preparations made by other manufacturers are equally effective. Although some studies of glucosamine have not found benefits, these have either included patients with severe osteoarthritis or used products other than glucosamine sulfate. The evidence for the effect of glycosaminoglycan polysulphate is conflicting and merits further investigation. More well-designed clinical trials are needed to confirm safety and effectiveness and to test different formulations of glucosamine.