Glucosamine is an amino sugar, meaning it is made from a protein molecule mixed with a sugar molecule. It occurs naturally in the body, although production may decrease with age. Glucosamine is not easily obtained from food sources, so supplements provide a safe and easy way to top up. Glucosamine is widely sold as a food supplement and has had much research carried out into its potential benefits. The Glucosamine Sulphate used in Natures Aid® products is all guaranteed to be salt free as we only use the 2KCl form of the product. This means that our glucosamine is made using potassium chloride, a safe, sodium free product, which is used to stabilise the Glucosamine supplement.