<unk>  (C6H13NO5) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids.<unk>  is part of the structure of two polysaccharides, chitosan and chitin.<unk>  is one of the most abundant monosaccharides. Produced commercially by the hydrolysis of shellfish exoskeletons or, less commonly, by fermentation of a grain such as corn or wheat,<unk>  has many names depending on country. Although a common dietary supplement, there is little evidence that it is effective for relief of arthritis or pain, and is not an approved prescription drug.
Glucosamine
Thiamylal
Glucose
Sodium fluoroacetate
Tuaminoheptane
Lactose
Empty calories
Glucuronic acid