Tieguanyin has the effects of invigorating stomach, promoting digestion, reducing fat and slimming, because Tieguanyin contains active ingredients, which can accelerate the decomposition and metabolism of fat in human body. Regular drinking can promote digestion and lose weight. In addition, Tieguanyin has the effects of improving immunity and delaying aging. Tieguanyin is rich in trace element selenium, which is not only a natural anticancer component, but also an excellent antioxidant. It can improve the activity of human immunoglobulin, inhibit cell canceration, scavenge human free radicals and delay human aging.