Answer by
Valentine62 (2131)
In a cup of whole milk, there is about 300 mg of calcium. If you drink skim or lowfat milk, calcium cannot be absorbed because there is little to no fat. It depends on your age, how much calcium you need each day; 1-8 years, 500-800 mg, 9 - 18, 1300 mg, 19-50, 1000 mg., and 51 plus, 1200 mg.