Water makes up 50% to 70% of the body’s weight (about 10 gallons or 40 litters)
Lean muscle tissue contains 73% WATER
Adipose tissue is about 20% water.
As fat content increases (and the percentage of lean tissue decreases) in the body, total body content drifts toward 50%
An adult can survive for about 8 weeks without eating food but only a few days without drinking water.
This occurs not because water is more important than other nutrients, but rather because we can not conserve water as well as we can the other components of our diet.
Water enables chemical reactions to occur, contributes to temperature regulation, removes waste products.
How much do we need?
1 milliliter or water per kcal expended. 2.4 liters (10 cups) of water for a 2400 kcal diet.
One way to determine if water intake is adequate is to observe the color of one’s urine: it should be clear to pale yellow.
Thirst – if you do not drink enough water, your body will signal thirst. If thirst is ignored, your body conserves fluids.
You can get your water from foods such as fruits, vegetables and milk. For example, cucumbers and watermelon are great sources of water.