MSM is a natural form of organic sulfur

found in the fluid and tissues of all living

organisms. Unless your diet consists largely of raw and unprocessed foods, it is unlikely that sufficient MSM will be ingested. Sulfur is responsible for the building of body proteins through the formation of disulfide bonds, thereby holding connective tissue together. This sulfur containing amino acid also pulls heavy metals(unwanted) out of the body giving some relief of joint pain.