Glucosamine and chondroitin are not snake oil. Here's info from the Arthritis Foundation:
http://www.arthritis.org/conditions/...lucosamine.asp
Quote:
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Past studies show that some people with mild to moderate osteoarthritis (OA) taking either glucosamine or chondroitin sulfate reported pain relief at a level similar to that of nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin and ibuprofen. Some research indicates that the supplements might also slow cartilage damage in people with OA. Definitive results about the effects of these supplements are expected from an in-depth clinical study currently being conducted by the National Institutes of Health (emphasis added).
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See also QuackWatch:
http://www.quackwatch.org/01Quackery...ucosamine.html
I take half the dosage Kallix mentions (1 pill/day) and have had excellent results.