Glucosamine sulfate is a popular dietary supplement often used to support joints and promote healthy joint function. It is a naturally occurring substance in the body that is important for the formation of cartilage and other tissues in the joints. Many people take glucosamine sulfate to reduce joint pain and improve joint mobility, especially in conditions such as osteoarthritis. It is available in various forms, including tablets, capsules, and powder, making it easy to include as part of your daily diet.