The true effects of cut gymnema sylvestre leaf are still being studied, and there has been little in the way of hard scientific proof. What studies suggest is that like other organic herbs of this type, when it is taken over an extended period of time, may help in the reduction of blood sugar levels. Those who crave sweets may find that placing dried herbs like gymnema sylvestre leaf in the mouth may help in reducing such unhealthy craving, albeit it for a short period of time; anecdotal evidence suggest that sliced gymnema sylvestre leaf may actually block the tongue's sweet receptors.
A 2005 study conducted at King's College in the U.K. indicated that an extract of gymnema sylvestre leaf in low concentrations could stimulate the production of insulin in human beta cells. In some countries, powdered gymnema sylvestre leaf extract combined with cinnamon and other medicinal herbs is used as a diabetes treatment.
Those who are considering taking gymnema sylvestre leaf or other kinds of natural herbs for therapeutic purposes should be aware that any claims made for this herb have not been endorsed by the FDA; use of this or any other herbs should be undertaken only under advice and guidance of a qualified naturopathic doctor or other healthcare professional.
