Methylsulfonylmethane (MSM) is a sulfur-containing compound found in plants, animals, and humans. It can also be made in a lab into a dietary supplement, which is used widely in alternative medicine.

DEAR DR. ROACH: I’m interested in consuming dimethylsulfoxide (DMSO). I’ve read it will destroy the root of cancer and hasten the healing of broken bones, ligaments and strained muscles. My question ...

The sulfur-containing compound methylsulfonylmethane (MSM) is naturally found in tiny amounts in the body. It also occurs in many plants and animals; the best source of it is cow’s milk. MSM ...

Dear Doctor: A friend suggested I try MSM crystals for arthritis. What are they, and do they work? If they do, where can I find them? Dear Reader: Methylsulfonylmethane (MSM) is an organic ...