Peppermint leaves cannot lose weight. Peppermint, as a traditional Chinese medicine for dispersing wind-heat, is pungent and cool in nature, attributed to the lung and liver meridians, and smells aromatic and open to the nerves, good at dispersing wind-heat in the upper jiao, and can be used to treat fever, headache, sore throat and itchy rash caused by wind-heat in the upper jiao. Peppermint leaf also has the effect of detoxifying the liver and relieving depression, and can be used to treat depressed moods caused by liver qi stagnation. Modern pharmacology believes that the main component of peppermint leaves is volatile oil, which can make capillaries dilate and promote sweating to reduce fever, as well as analgesic and anti-inflammatory effects, and is mostly used to treat urticaria, conjunctivitis, mastitis, etc. In summary, peppermint leaves do not promote human metabolism and thus weight loss. It is recommended to choose other drugs that strengthen the spleen and promote dampness to lose weight, such as mulberry bark and corn husk.