Drinking lemon water every day can be, but you can not drink too much, not to mention that you can not replace water to drink. Lemon is rich in vitamin C. Every 100 grams of lemon contains about 22 mg of vitamin C. Proper intake can timely replenish the vitamin C needed in the body. In addition, lemon water, when consumed in excess, may lead to excessive secretion of gastric acid, causing irritation of the gastric mucosa, causing gastric symptoms. Therefore, when drinking lemonade must pay more attention to the amount, especially for the existence of gastric acid secretion, gastric ulcers and other patients, it is not recommended to drink, so as not to aggravate the symptoms. Although lemon water has certain benefits to the human body, but try not to drink on an empty stomach, so as not to lead to a large amount of gastric acid secretion, it is recommended to drink half an hour after the evening meal.