There are other dietary factors to consider. Biotin and vitamin C are found in fresh fruits. Eating fresh fruits while taking MSM could be helpful. In addition to arthritis, it may have other future uses. Insulin synthesis depends upon sulfur.
Many vitamins require or contain sulfur.
A good MSM product is both safe and effective. The MSM source for MSM supplements is often lignin from pine trees. Lignin is a molecule in plants that is part of a plant's cell wall. Lignin oxidation in oak wine barrels results in the vanilla flavors of wines. The pine tree lignin is an ideal source for a good MSM product.