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Glucosamine, Promising Research: More is Needed

Glucosamine is a natural compound that is found in healthy cartilage. Glucosamine sulfate is a normal constituent of glycoaminoglycans in cartilage matrix and synovial fluid.

Based on human research, there is good evidence to support the use of glucosamine sulfate in the treatment of mild-to-moderate knee osteoarthritis. 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. Better-designed clinical trials are needed to confirm safety and effectiveness, and to test different formulations of glucosamine.

Several human studies and animal experiments report benefits of glucosamine in treating osteoarthritis of various joints of the body, although the evidence is less plentiful than that for knee osteoarthritis. Some of these benefits include pain relief, possibly due to an anti-inflammatory effect of glucosamine, and improved joint function. Overall, these studies have not been well designed. Although there is some promising research, more study is needed in this area before a firm conclusion can be made.

Early human research reports benefits of glucosamine in the treatment of joint pain and swelling in rheumatoid arthritis. In other research, glucosamine did not exert anti-rheumatic effects, but it did improve symptoms of the disease. However, this is early information, and additional research is needed before a conclusion can be drawn. The treatment of rheumatoid arthritis can be complicated, and a qualified healthcare provider should follow patients with this disease.

The U.S. Food and Drug Administration do not strictly regulate herbs and supplements. There is no guarantee of strength, purity or safety of products, and effects may vary. You should always read product labels. If you have a medical condition, or are taking other drugs, herbs, or supplements, you should speak with a qualified healthcare provider before starting a new therapy. Consult a healthcare provider immediately if you experience side effects.