According to ancient and modern medical (food) theories such as Compendium of Materia Medica, Diet Spectrum of Fun Life and China Herbal Tea Formula, lotus plumule and lotus flower have the effects of clearing heart fire, calming liver, purging spleen, lowering lung, clearing away heat and nourishing heart, lowering blood pressure, promoting diuresis, astringing fluid, stopping sweating, stopping bleeding and fixing essence. "Lotus loses weight, which makes people thin and feel inferior." China has regarded lotus as a slimming medicine since ancient times. At present, the hospital still allows obese patients to drink lotus seed tea.