| Effect | Decrease |
| Trial Design | Non-controlled trial |
| Trial Length | 1-6 months |
| Number of Subjects | 55 |
| Sex | Both Genders |
| Age Range | 30-44, 45-64 |
Despite no alterations in plasma IgE and Histamine, MSM supplementation at 2600mg to persons with allergic rhinitus was able to reduce respiratory symptoms associated with allergies. Efficacy was present at day 7, increased at day 14, and maintained until the end of the trial at day 30.
