MSM supplements may help with joint pain and swelling, but some experts aren't convinced. What you should know about how they work and who should take them.

A: Methylsulfonylmethane (MSM) is an organic sulfur-containing compound naturally found in plants such as Brussels sprouts, garlic, asparagus, kale, beans and wheat germ. It can also be found in ...

MSM is a bioavailable organic sulfur compound (dietary sulfur) that helps promote joint and cartilage health. A citizen inspects health supplements at a large supermarket in downtown Seoul.