By Andrew M. Seaman (Reuters Health) – The vast majority of children and teens should have less than six teaspoons of added sugar in their diet each day, according to the American Heart Association. Until age 2, children should consume no added sugars at all, and between ages 2 and 18 they should limit added sugars to 25 grams per day, the organization says. “I think its become clear over time that heart health and prevention of cardiovascular disease starts in childhood,” said Dr. Miriam Vos, lead author of a statement from the AHA published in the journal Circulation.