Glucosamine is technically a type of sugar, but it is not the same as your regular table sugar. Nor is it the same as sugar found naturally in fruit. Table sugar, also known as aCoegranula sugar, is made up of an organic compound, sucrose. Sucrose is a disaccharide, made up of glucose and fructose.
Glucosamine, on the other hand, is a simple amino sugar. It is a monosaccharide, meaning that it is in its basic form and not constructed from other sugars, as is table sugar.
Glucose, also known as dextrose, is a monosaccharide. Cells use glucose as their primary source of energy. It is also a key component of photosynthesis. Higher than usual glucose levels may be a sign of diabetes.
Glucosamine has a different molecular structure and is a natural component of the body. Glucosamine is a key component of the extracellular matrix of cartilage (the grout between the cartilage cells). It absorbs and releases water with each step, thereby acting as a shock absorber for the joints. With more glucosamine, there is more joint protection.
If you are diabetic, talk to your doctor before initiating any glucosamine supplement. Most studies show no relationship between glucosamine and increased blood sugar levels. Your doctor will most likely still want to closely monitor your blood sugar levels if you are taking this supplement.
One possible reason why a few studies have shown increased blood sugar levels is because of interactions between glucosamine and some diabetic medications. Make sure your doctor is aware of any medications and supplements you are taking to check for any interactions before implementing a glucosamine supplement.