9-18 year old needs about 1,300mg calcium per day girls and boys are the same
An adult men needs about 1,000mg women needs about 1,200mg per day
9-13 year old needs about 5 to 7 cups of water and that is 1.5 to 1.7 liters of water
A man needs about 15.5 cups of water which is 3.7 liters and women needs about 11.5 cups which is 2.7 liters