Likewise, MSM administration in rats displayed no adverse events or mortality. No pathological lesions or changes in organ weights were observed [4, 7]. It is proved that MSM is well tolerated in rats and can be a dietary supplement for allergies [4]. In addition, pregnant rats orally administered with MSM showed no adverse effects as well [8]. MSM can be rapidly absorbed, well distributed, and completely disposed from the body 120 hours after initial administration [9].