Glucosamine sulfate is a supplement that is derived from the shells of shrimp, lobsters, and crabs. It is used for a variety of different conditions, but is best known for its effects on treating osteoarthritis. It is believed to work for arthritis by decreasing inflammation, stimulating chondrocytes (cells that make and maintain cartilage), and reducing the production of certain compounds that degrade cartilage. Potential side effects of glucosamine sulfate include diarrhea, heartburn, and nausea.
(Click Glucosamine Sulfate to learn more about the benefits, effectiveness, and safety of glucosamine supplements.)