Since ancient times, China has regarded lotus leaf as a good medicine to dispel summer heat and lose weight. If you want to maximize its weight loss function, you'd better drink it on an empty stomach. Ancient and modern pharmaceutical classics such as Compendium of Materia Medica and China Herbal Tea Prescription hold that lotus plumule and lotus leaf have the functions of clearing away heart fire, calming liver, purging spleen, lowering lung, clearing away heat and refreshing brain, lowering blood pressure, inducing diuresis, astringing fluid, stopping sweating, stopping bleeding and fixing essence. Lotus leaf is the leaf of perennial aquatic herb Nelumbo nucifera, and its chemical components mainly include nuciferine, citric acid, malic acid, gluconic acid, oxalic acid, succinic acid and other anti-mitotic alkaline components. Take a proper amount of fresh green lotus leaves, chop them, add water and boil them to make tea. Or go to the drugstore to buy dried lotus leaves and soak them in water. No need to go on a diet. It may not be like medicine, but it is a green and healthy drink. It should be noted that lotus leaf tea is cold, so it is not suitable for women to drink during menstruation.