Gymnema is an herb native to India, long used in Ayurvedic practice. Its leaves contain compounds that temporarily reduce how much sugar the gut absorbs. They may also affect the taste receptors that detect sweetness.
People typically take gymnema before meals in capsule, tablet, or liquid extract form. This botanical is not intended to treat diabetes or replace any prescription medicine.
Use caution if you take diabetes medication. Gymnema may amplify those drug effects and raise the risk of hypoglycemia. Stop taking it at least two weeks before any scheduled surgery because of its potential impact on blood sugar. Speak with a qualified professional before use.