I hate to admit it, but even though I am only 26 I get terrible achy joints. When I over do it, and sometimes even just in day to day stuff my knees feel really dry. I did some internet research and plenty of sites, people, journals and literature were recommending glucosamine and chondroitin. Apparently it is the largest purchased non vitamin and non mineral supplement in the US. I even heard that doctors prescribe it, you can get it on prescription! Glucosamine is an amino acid present in cartilage and has been shown to improve damaged joints. Chondroitin has been shown in animal studies to increase the effectiveness of Glucosamine. It seemed non sense to ...  Read the complete review