Mega MSM 2400 mg MSM per day Pack of 33 servings Methylsulfonylmethane, commonly known as MSM, is an organic compound that contains sulfur and is naturally present in the human body. Natural sources of MSM include many fruits, vegetables, grains, and animal foods. In our category, MSM is often found in combination with chondroitin, glucosamine, and collagen. If you want to supplement your diet with MSM alone, this product may be a good choice. For women and men. For those looking for a capsule product containing MSM. For those looking for a dietary supplement containing MSM in combination with a complex product.