How much water do people drink every day? According to scientific research, the water evaporated from urine, sweat or skin is about 1800 ~ 2000ml, so healthy adults need to replenish about 2000ml of water every day. But 2000ml 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. It is roughly estimated that we can get at least 300 ~ 400 ml of water from food or soup when we eat a meal. Therefore, we only need to deduct 1000 ~ 1200ml water from three meals every day, and then drink 1000 ~ 1200ml boiled water, with an average of 2 cups in the morning and 2 cups in the afternoon.

However, the demand for water must depend on everyone's environment (temperature, humidity), exercise, health and food intake. There is no standard value. People should not drink less than 500ml of water every day, but not more than 3000ml.

However, some people do need to drink more water, including gout and kidney calculi's patients. The insurance method is to follow the doctor's advice.

There are three methods to estimate the daily water demand of human body, but the conclusion is basically the same: the average daily water demand of adults is more than 2500 ml, of which about 1500 ~ 2000 ml comes from direct drinking water and the rest comes from food. For a 70-year-old man, he has to drink more than 60 tons of water in his life. Of course, adding more than 2000 ml of water a day is only an average.

For a person, we can use the following methods to measure our actual water consumption.

The first calculation method of drinking water can be calculated by weight. According to the research of the International Institute of Medicine in Los Angeles, the standard for adults to drink water every day is to supplement 40 ml of water per kilogram of body weight every day.