According to scientific research, the water lost from urine, sweat or skin evaporation every day is about 1800 ~ 2000cc, so healthy adults need to replenish about 2000cc of water every day.

However, 2000cc of water is not necessarily obtained by drinking water, and the moisture in food should be included.

In fact, the food we eat every day contains a lot of water. For example, most vegetables and fruits contain more than 90% water, while eggs and fish also contain about 75% water. Roughly speaking, we can get at least 300 ~ 400 cc of water from food or soup when we eat a meal.

Therefore, after deducting 1 0,000 ~ 1 0,200 cc of water for three meals, we only need to drink10,000 ~10,200 cc of boiled water every day, with an average of 2 cups in the morning and 2 cups in the afternoon, which is considered as basic work.

However, the demand for water must depend on everyone's environment (temperature, humidity), exercise, health and food intake. There is no standard value.

Not less than 500 ml per day, but not more than 3000 ml.

However, some people do need to drink more water, including patients with gout and kidney calculi.