Scientists from the U.S. Food and Drug Administration (FDA) tested 21 supplements claiming to be “natural” and determined that nine of the 21 contained a non-natural amphetamine-like compound. The testing has been reported by USA Today, but the FDA is not yet divulging which supplements contained the compound. The FDA also has not issued any warnings yet.
All 21 products list an ingredient on their labels called Acacia rigidula, which is a plant found in Texas and Mexico. However, the FDA did not find the amphetamine-like substance in samples of the plant. The FDA also notes that the compound appears to have never been tested for safety on humans, they said.