-- Robert Preidt
TUESDAY, March 11, 2014 (HealthDay News) -- The dietary
supplement glucosamine does not slow cartilage damage in people
with chronic knee pain, according to a new study.
Millions of Americans take glucosamine in an effort to treat
osteoarthritis of the knee and other joints. The most common form
of arthritis, osteoarthritis is related to normal wear and tear of
The new study, published online March 11 in the journal
Arthritis & Rheumatology, included about 200 people with
mild to moderate pain in one or both knees. They were randomly
selected to drink 1,500 milligrams a day of glucosamine or a
placebo added to a 16-ounce bottle of diet lemonade for 24
MRI scans were used to assess cartilage damage in the patients'
knees. Reductions in cartilage damage were no greater in the
glucosamine group than in the placebo group, and taking glucosamine
did not reduce knee pain, according to a journal news release.
"Our study found no evidence that drinking a glucosamine supplement reduced knee cartilage damage, relieved pain or improved function in individuals with chronic knee pain," said researcher Dr. C. Kent Kwoh, director of the University of Arizona Arthritis Center.
A 2007 survey found that 10 percent of American adults used
The U.S. National Institute of Arthritis and Musculoskeletal and
Skin Diseases has more about
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