Gymnema sylvestre is an herb from India and Africa. People call it "gurmar," which means sugar destroyer. Its leaves hold gymnemic acids. These compounds block sweet taste receptors for a short time and influence glucose metabolism.
Taking the herb before meals helps keep blood sugar levels inside a normal range. Some people use it to blunt sugar cravings. The taste-blocking effect fades quickly.
Standardized extracts containing 24% gymnemic acid and dried leaf powders are common choices. Take either form before meals. Watch your blood sugar closely if you also use diabetes medication. Do not use gymnema during pregnancy or while breastfeeding. Check with a healthcare provider if you have a medical condition or take any drugs.