White tea contains polyphenols, caffeine, amino acids, tea pigments and many other ingredients. Drinking white tea in moderation has a good health effect on the human body, but people who drink high concentrations of tea for a long time can also have adverse effects on the body. White tea components will generally produce the role of the supplemental trace elements, promote gastric acid secretion, excitation of the nerve center, etc., these effects may be beneficial to the human body, may also have a bad. 1, supplemental trace elements: white tea is a kind of tea, contains more iron, potassium, calcium, manganese, aluminum and other mineral components, moderate drinking white tea can be supplemental mineral elements for the body, to prevent such trace elements Lack of certain benefits; but for patients with kidney disease, drinking large amounts of white tea water may increase the burden on the kidneys; 2, promote gastric acid secretion: white tea can promote gastric acid secretion, moderate consumption of white tea can enhance digestion, promote gastrointestinal peristalsis, for indigestion, weight loss has certain benefits; but poor gastrointestinal function of patients, drinking large amounts of white tea water may increase the burden on the stomach and intestines, and even have 3, excite the nerve center: white tea has a high caffeine content, moderate consumption of white tea can improve the excitability of the central nervous system, with a certain refreshing effect; but the higher concentration of white tea before bedtime will enhance the excitability of the nervous system, affecting sleep, and may even have a negative impact on cardiovascular. In addition, Chinese medicine believes that white tea is cool in nature, summer drinking white tea in moderation can play a role in reducing fire, suitable for people with fire, but people with a cold physique drink white tea water for a long time, may aggravate the symptoms of cold discomfort.