Tangren Tea contains gymnema sylvestre, which has been a beverage in India for more than two thousand years. In India it is known as Meshashringi or Gurmar which literally means "sugar destroyer" as, it is known to mask the body's sense of taste of sugar.
2-3 teabags daily.
Use hot water and step one teabags for few minutes.
Do not add sugar, can add some lemon if prefer.
drink before meal will serve the best result.