An adult needs to drink about 1500ml-2000ml of water.
Normal people consume 2500ml-3000ml of water per day for metabolism, etc., which means they need to consume 2500ml-3000ml of water every day to achieve balance.
Drinking more water is beneficial to the excretion of toxins in the body and can also reduce the occurrence of gallstones and kidney stones.
We can replenish about 1000ml of water every day from the fruits, vegetables, meats, staple foods and other foods we eat, and the remaining 1500ml-2000ml of water needs to be replenished by drinking water.
If you are doing exercise or on a hot day, you need to drink more water.
Extended information
Water (chemical formula: H?O) is an inorganic substance composed of hydrogen and oxygen and is non-toxic. It is a colorless and odorless transparent liquid under normal temperature and pressure, and is known as the source of human life.
Water is one of the most common substances on the earth. It is an important resource for the survival of all life, including inorganic compounds and humans. It is also the most important component of living organisms. Water played an important role in the evolution of life. It is a non-renewable resource in a narrow sense and a renewable resource in a broad sense.
For the human body
For humans, water is the most important substance after oxygen. In the adult body, 60 to 70% of its mass is water. The proportion of water in children's bodies is even greater, reaching nearly 80%. If a person doesn't eat and relies only on nutrients stored in his body or consuming his own tissues, he can live for a month. But it’s hard to get through even a week without drinking water. Losing 10% of water in the body threatens health, and losing 20% ??of water is life-threatening. This shows the importance of water to life.
Water also has the effect of treating common diseases. For example: a cup of cold boiled water in the morning can treat spots; drinking some water half an hour after a meal can be used to lose weight; the massage effect of hot water is a powerful soothing effect. Taking medicine can relieve insomnia; drinking large gulps of water can relieve constipation; a glass of water before going to bed is good for the heart; when you feel sick, you can use salt water to induce vomiting.
Reference: Baidu Encyclopedia-Water