The fluid needs of each person is different. In adults, suggested water consumption is about eight glasses measuring 230 ml per day or a total of 2 liters.
Apart from drinks, food can also provide fluid intake in the body, which is about 20%. Fluids from food are mainly obtained from fruits and vegetables, such as spinach and watermelon containing 90% water.
To find out whether the body lacks fluids, spelled out easily. The initial sign that is generally felt when a person lacks fluid is feeling thirsty and urine darker than usual.
Other symptoms that may also be felt when the body is not well hydrated is feeling dizzy, headache, mouth, lips, and eyes feel dry, urinate with the amount and intensity of rare, less energy, and fatigue.
No less important, it should be noted some special conditions and activities that make the body so require more water intake than usual.