Methylsulfonylmethane (MSM) is a highly biologically valuable source of sulfur. Sulfur is important for joint tissue support, however, other nutrients are also supportive of joint health. Along with MSM there are a number of supportive nutrients including glucosamine, chondroitin, vitamins C and E, and specific amino acids. While optimal joint support must start with a healthy and varied diet, nutritional supplements may be useful. However, it is important that your healthcare provider be aware of ALL supplements, herbs or medicines you are taking.