How many grams of calcium do you need per day?

Babies between the ages of newborn and six months old should have at least 210 milligrams of calcium each day. From seven months to one year, they should have 270 milligrams per day. Children aged one to three years should have 500 milligrams, four to eight years should have 800 milligrams. Children nine years to eighteen year olds should have 1300 milligrams. It is vitally important that children get the calcium they need because this is when their bones and teeth are developing, and their bodies crave calcium! Adults between the ages of nineteen and fifty need 1000 milligrams of calcium per day, which adults aged fifty one and over need to increase their calcium intake to 1200 milligrams per day. Source: http://www.disabled-world.com/artman/publish/calcium.shtml