Black tea can lose weight, but from the efficacy of black tea to discuss, the weight loss effect of black tea is not significant. The reason why black tea can lose weight is because it contains more cellulose, which can promote human intestinal peristalsis, speed up human digestion and absorption, help the human body to defecate and detoxify, reduce the accumulation of waste and toxins in the human body, and avoid causing the body to gain weight and bloated obesity. Black tea can also lose weight because black tea contains a certain amount of caffeine, caffeine can excite the nerves, promote sweat secretion sweat, and help the body diuretic, defecation, so that the body through the metabolism of excess lactic acid and waste, for human weight loss has auxiliary significance. Although black tea has a weight loss effect, but the black tea alone can not achieve significant weight loss effect, want to lose weight also need to develop a reasonable and healthy diet and exercise program, can achieve twice the weight loss effect with half the effort.