MSM is a sulphur supplement. It helps detoxify the body, and lubricates the intestinal walls. If will also help get rid of parasites. If you aren't taking a molybdenum supplement then get the 1 gram msm tablets that have ar least 50 mcg of molybdenum, since many people are already deficient in molybdenum or close to it, and metabolizing msm requires some molybdenum.