FDA finds illegal methylsynephrine in supplements.
Which ingredient is the banned substance?
The U.S. Food and Drug Administration (FDA) sent warning letters to seven companies. Sending letters after finding the stimulant methylsynephrine as a dietary ingredient in their bodybuilding supplements.
Methylsynephrine (m-synephrine) is also known as Oxilofrine and p-hydroxyephendrine. While the 1994 Dietary Supplement Health and Education Act allows the U.S. Food and Drug Administration to remove products. Also, products removed from the market containing unsafe ingredients or labeling is false or misleading.
Methylsynephrine is on the World Anti Doping Agency’s banned substances list. Not meeting the definition of a dietary ingredient. While bitter orange supplement extracts contain p-synephrine, a legal and natural source of synephrine. Furthermore, unlike m-synephrine, p-synephrine does not raise heart rate or blood pressure.