Natures Aid Glucosamine MSM & Chondroitin 180'sGlucosamine is an amino sugar, meaning it is made from an amino acid mixed with a sugar molecule. It occurs naturally in the body, although production may decrease with age. MSM is a rich naturally occurring source of sulphur which is required for the structure and function of many compounds within the body. Chondroitin Sulphate is composed of a chain of alternating sugars and is usually attached to proteins as part of a structural substance called a