Gymnema is a shrub that grows in India and Africa. People in India have been using gymnema leaves for thousands of years to try to treat diabetes. The Hindu word for gymnema -- gurmar -- means "sugar destroyer."
Tell your doctor about any supplements you're taking, even if they're natural. That way, your doctor can check on any potential side effects or interactions with any medications.
The U.S. Food and Drug Administration (FDA) does regulate dietary supplements; however, it treats them like foods rather than medications. Unlike drug manufacturers, the makers of supplements don’t have to show their products are safe or effective before selling them on the market.