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Methyl Sulfonyl Methane (MSM)
What is it? Overview Usage Side Effects and Warnings

Methyl Sulfonyl Methane (MSM) Side Effects and Warnings

Written by FoundHealth.

Safety Issues

MSM is a natural component of the foods we normally eat and is not believed to be toxic. A laboratory study examining doses up to 8 g per kilogram of body weight per day (about 250 times the highest dose normally used by humans) reported that no toxic effects were seen. 1 Maximum safe doses for young children, pregnant or nursing women, or people with liver or kidney disease are not known. Possible drug interactions are also not known.


  1. Morton JI, Siegel BV. Effects of oral dimethyl sulfoxide and dimethyl sulfone on murine autoimmune lymphoproliferative disease. Proc Soc Exp Biol Med. 183(2):227-30.


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