Glucosamine sulfate is a natural sugar found in and around the fluid and tissues that cushion your joints. This tissue is called cartilage. Glucosamine is also found in the hard covering of shellfish. Glucosamine sulfate supplements are often made using shellfish. The substance can also be made in a laboratory.
The supplement seems to reduce pain as much as ibuprofen. But it doesn’t work as fast. It can take four to eight weeks for glucosamine sulfate to ease pain.
Some studies show that glucosamine sulfate may also work for:
– Osteoarthritis of the hip or spine
– Arthritis of the temporomandibular joint (TMJ) in the jaw
A study in men also suggests that glucosamine sulfate may help a person bend and flex the knee better after a sudden knee injury. Glucosamine may also slow the progression of osteoarthritis.
Optimal doses of glucosamine sulfate have not been established. Supplement ingredients and quality may vary widely from maker to maker. This makes it hard to establish a standard dose.