What is the main ingredient of glucosamine?

Glucosamine usually refers to amino glucose. Glucosamine is a polysaccharide synthesized from glucose and glutamine. It is a naturally occurring compound found in cartilage, serving as an essential component of cartilage and acting as connective tissue that cushions friction between bone ends.

In supplement form, glucosamine can be harvested from shellfish shells or manufactured in laboratories. There are several forms of glucosamine, including glucosamine sulfate, glucosamine hydrochloride, and N-acetylglucosamine. In clinical medicine, oral glucosamine is used to treat or relieve joint pain caused by conditions such as rheumatoid arthritis and osteoarthritis.

When taken in appropriate doses, glucosamine poses no significant health risks. However, excessive intake may cause side effects such as nausea, vomiting, and constipation. Therefore, patients are advised to seek medical evaluation early and follow standardized medication treatments under a doctor's guidance.