Each zipvit capsule contains a huge 1000mg of glucosamine sulphate to supplement the natural occurring glucosamine found in your cartilage glucosamine 2kcl 1000mg tablets glucosamine is produced naturally in the body although there are no major food sources of this substance a major structural component within joint tissue of cartilage tendons and ligaments and is the starting point of the synthesis of several important macromolecules including glycoproteins glycolipids and glycosaminoglyca