The main component of ligaments, tendons, cartilages and spinal discs is collagen which is the most abundant protein found in mammals, with its purpose being to actually connect cells together. The name collagen is derived from Greek and means to "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 - supplementation of Glucosamine in the diet has been associated with the slowing down of the wear of cartilage, the stimulation ofsynovial fluid production and in some cases, restoration of the thickness of cartilage in the joints. Glucosamine has also helped a number of other joint related problems including degeneration, swelling, inflammation, sciatica, recuperation from operations or injuries, osteoarthritis and slipped discs.
Eyes - has helped in the condition uveitis which is an inflammatory disease of the iris and focusing muscle. It is also useful in preventing changes in the vitreous humour (substance within the eye) and thus protecting the retina from release.

Properties

Glucosamine - is an essential precursor of the glucosaminoglycans chondroitin sulphate (a key structural component of cartilage) and hyaluronic acid (found in synovial fluid, the vitreous humour in the eye and loose connective tissue).

Vitamin C - is known to benefit collagen production and collagen is important in cartilage formation and for the growth and repair of body tissue cells.
Manganese - stimulates the release ofsuperoxide dismutase (SOD), an important anti-oxidant enzyme, Manganese is required for healthy skin, bone and cartilage formation,

Contra-indications / Precautions

Glucosamine is a readily absorbed amino sugar which quickly enters the bloodstream
and anyone who needs to monitor blood sugar levels should be made aware of this.
Glucosamine is prepared from shellfish and people with a known allergy should be
informed.