Stevia tea is effective in quenching thirst (promoting the production of fluid to relieve thirst), diuretic and hypotensive. Stevia is a plant of the Asteraceae family, and the dried leaves of the plant are used as medicine. Stevia is sweet and neutral in nature, and is effective in quenching thirst by promoting the production of fluid to relieve thirst, diuretic and antihypertensive. It is often used for thirst, dizziness, and high blood pressure. In addition, stevia is often used as an adjunctive treatment for people with diabetes, obesity, and high blood pressure. It should be noted that stevia usually presents grass-green obovate leaves, broken leaves generally do not affect the efficacy of the medicine, but if the tablets are blackened, it is not suitable for further use. In addition, people who are allergic to stevia are forbidden to take it. The use of stevia in the treatment of disease should be guided by a professional doctor.