Chondroitin is a glycosaminoglycan. It consists of long polysaccharide chains with a repeating disaccharide structure. Supplements are taken in the form of chondroitin sulfate. Chondroitin is found naturally in cartilage, where it helps prevent tissue breakdown and provides mechanical support for the joints.[1][2]
What is chondroitin?
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•Last Updated: May 16, 2025
Chondroitin is a glycosaminoglycan made up of long polysaccharide chains with a repeating disaccharide structure and is commonly taken as chondroitin sulfate supplements. It occurs naturally in cartilage, where it helps prevent tissue breakdown and supports joint mechanics.