Lose weight with oolong tea and drink one cup before and after three meals. It is best to drink hot tea without sugar. And don't drink it immediately after meals. It is more appropriate to drink it every 1 hour. Drinking tea should also adapt to personal physique. If you feel uncomfortable after drinking tea, such as stomachache or insomnia, you'd better stop. When making tea, the water temperature should be controlled at about 80℃-90℃; The brewed tea should be drunk within 30-60 minutes, otherwise the nutrients in the tea will be oxidized.