After drinking tea easy to appear hungry, because tea contains caffeine and theophylline and other ingredients, these ingredients can promote gastrointestinal peristalsis to speed up and stimulate the secretion of gastric acid to increase the digestive function of the gastrointestinal, thus easy to appear hungry. Especially Pu-erh tea and black tea, the role of stimulating gastric acid secretion is stronger than green tea, if there is excessive gastric acid secretion or gastric ulcer, duodenal ulcer and other diseases patients are not suitable for drinking tea, to avoid causing increased gastric acid secretion, aggravating the symptoms of the disease affect the recovery of the disease endanger health. By drinking tea to lose weight has no effect, because although drinking tea will promote the gastrointestinal digestion of fat, protein, etc., but can not change the body’s absorption of nutrients after digestion, digested fat and other substances are still absorbed by the body, if absorbed in excess, or will become adipose tissue can not achieve the purpose of weight loss.