Introduction: Glucosamine is made from a combination of sugar - hence the first part of the name glucos(e) - and an amine, which is a derivative of ammonia containing nitrogen (N) and hydrogen (H) atoms. It is a naturally occurring substance found in the body’s cartilage. It provides the building blocks needed for the body to repair and make body cartilage. Glucosamine is also necessary to keep cartilage tissue lubricated and maintain its naturally slippery texture. Glucosamine is available in a variety of chemical forms such as glucosamine hydrochloride and glucosamine sulphate. Why we need Glucosamine: As we age, the body's ability to convert glucose and glutamine to Glucosamine declines because of reductions of the converting enzyme i.e. Glucosamine syntheses. When the body supplies too little Glucosamine Sulfate to the joints, cartilage begins to break down. By taking Glucosamine supplements, it can replenish our body supply of Glucosamine and restore healthy joints that are damaged by osteoarthritis or other injuries. How effective is Glucosamine: Glucosamine has been studied for well over 40 years in humans and it has been used in prized thoroughbred horses, cats, dogs and even exotic animals. Glucosamine is found naturally in the body and is a natural nutraceutical product. Hundreds and thousands of people have used Glucosamine and many have found it extremely effective not only in case of arthritis pain but also in providing long lasting pain relief. Glucosamine has been shown in clinical studies to regrow cartilage, slow the progression of arthritis and possibly even modify the disease itself with almost no side effects. Process: Glucosamine is not available from any primary food source but instead, is commercially prepared from chitin, which is the shell extract of shellfish such as lobster, crab and shrimp as well as animal connective tissues such as the marrow of chicken bones. Commercially prepared glucosamine comes in three forms: Glucosamine Sulphate Potassium Chloride (2KCl), Glucosamine Sulphate Sodium Chloride (NACL) and Glucosamine Hydrochloride (HCl).