Lemon is a food, and drinking it in water will not have any effect equivalent to medicine, but drinking it in moderation can provide the body with certain nutritional elements. Lemons are rich in citric acid and have a sour flavor. Lemon is rich in vitamin C, generally its content in 393.0mg/100g. In addition, it also contains carbohydrates 97.5g/100g, calcium 69mg/100g, phosphorus 42mg/100g, potassium 166mg/100g, sodium 1.9mg/100g, magnesium 8mg/100g. Lemon infused water if only drinking water, its supplementary nutrition content is limited. Can be consumed with lemon, but pay attention to control the amount of food, so as not to overdose lead to gastrointestinal discomfort. Daily diet must ensure food diversity, diet and nutritional balance, do not favor picky food, so as not to lead to the body lack of nutrients.