Gymnema sylvestre is an Indian herb used
Ayurveda, the ancient Hindi medicine system of India. Also referred to as
Gurmarbooti, gurmar, periploca of the woods in English and meshasringi
(meaning “ram’s horn”) in Sanskrit, it is a woody climbing plant that
grows in the tropical forests of central and southern India. The leaves
are used in herbal medicine preparations, which, when chewed, interfere
with the ability to taste sweetness, which explains the Hindi name gurmar—“destroyer
of sugar.” Gymnema sylvestre’s primary application was for adult-onset
diabetes (NIDDM), a condition for which it continues to be recommended
today in India. The leaves were also used for stomach ailments,
constipation, water retention, and liver disease.
Gymnema is native to the jungles of southern India. It has been
clinically proven to reduce excessively high blood sugar levels,
apparently by boosting the amount of insulin available to process sugar.
It also exhibits cholesterol-lowering activity, although not to a degree
that makes it useful. Gymnema leaves, when chewed, have the unusual
ability to block the taste of sweetness.
Gymnema leaves contain Gymnemic acid as an effective substance.
Gymnemic acid has a structure with tri-terpenoid combined with glucuronic
acid and several fatty acids. We have established analytical method of
Gymnemic acid by HPLC method, and extract and refine Gymnema syrvestre
extract with a clear guideline of effective substance. Gymnemic acid
combined with the recognized site of sugar, and so it prevents sugar from
combining with the site. It have suppressive activity of absorption of
sugar.
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