What is MSM (Methylsulfonylmethane)? DISCLAIMER: CONSULT WITH A DOCTOR BEFORE DECIDING ON A TREATMENT PLAN FOR ANY DISEASE OR INJURY. Methylsulfonylmethane, otherwise known as MSM, is a relatively common sulfur-based nutritional supplement that can help support gallbladder health and healing. It is closely related to DMSO (dimethyl sulfoxide), and has in fact previously been referred … Continue reading MSM and The Role of Sulfur Deficiency in Gallbladder Disease