The natural level of MSM in the circulatory system of an adult human male is about 0.2 parts per million. Normal human adults excrete from four to eleven mg MSM per day in their urine. In mammals the concentration of MSM in the body s various storehouses decreases with age, possibly as a result of changing diet or body metabolism. Some research suggests that there is a minimum concentration of MSM that must be maintained in the body to preserve the normal function and structure. The MSM we ingest in fresh fruits, vegetables and milk contributes essential sulfur for the synthesis of connective tissue, enzymes and immunoglobulin.
Sulfur is an important element in formation and good health of hair and nails.
MSM has been widely tested as a food ingredient without any reports of allergic reactions. More than 12,000 patients have been treated at the Oregon Health Sciences University with MSM at levels above two grams daily with no serious toxicity. It appears that the body uses what it requires and flushes out the rest within 12 hours. MSM should not be confused with sulfites or sulfa drugs. Response to allergies .