So, how much water do you need according to your body weight.
Water amount daily depends on your weight and activity levels too. The body is 60% water and we lose water with sweating and urine.
MayoClinic.com said we lose 6.3 cups daily from urine and 4 cups from sweating, bowels or breathing too. We get some food from water, but just a bit. This is maybe 20% daily. So, get more!
Experts agree that water is crucial for overall health and good weight, and that amount is ½ of our weight every day.
If you are 160 lbs you need 80 oz water. If you are inactive divide this weight by 2/3 and not a half.