certain fermented teas such as the semi-fermented Oolong tea and post fermenting Pu-erh tea have been reported to have slightly higher efficiency in assisting in weight loss. The difference is however minimum. The one we recommend most is the Lotus Leaf herbal tea - Natural Shape. It contain Oolong tea together with 5 other herbs recorded in Chinese medicine to be used to treat obesity. It is equivalent to a herbal weight loss receipt with higher level of efficiency.