The main component of ligaments, tendons, cartilages and spinal discs is collagen which is the most abundant protein found in mammals, with it's purpose being to actually connect cells together. The name collagen is derived from Greek and means 'produce glue'. The tissues mentioned above are also rich in proteoglycans which are 95% glycosaminoglycans (GAGs) and 5% protein. These GAGs act as a framework for collagen to model onto and consequently are responsible with collagen for continuously building and rebuilding ligaments, tendons, cartilages and spinal discs. The major precursor in GAG production is Glucosamine which is produced in the body from glucose and glutamine. Athletic endeavor, physical work or simply passing years means the body can no longer keep up with demand for Glucosamine and damage to the joints can occur. The Benefits of Glucosamine: Joints Eyes Glucosamine is a readily adsorbed amino sugar which quickly enters the bloodstream and anyone who needs to monitor blood sugar levels should be aware of this. Glucosamine is prepared from shellfish. Directions: 1- 2 tablets per day with food Natures Aid Glucosamine Sulphate Ingredients: Glucosamine Sulphate 2KCI Microcrystalline Cellulose Vitamin C (as Calcium Ascorbate) Tablet coating (Hydroxypropylmethylcellulose, glcerine, Natural colour:Titanium Dioxide) Anticaking Agent (Vegetable source Stearic Acid)