Sugar does not cause hyperactivity in children, despite widespread belief to the contrary. Recent studies conducted at Vanderbilt University and the University of Iowa College of Medicine found no evidence that sugar has an adverse effect on children's behavior.
Chocolate and sweets are often blamed when children get overly wound up. But experts have found that sugar has no adverse effects on the behavior of most children. Children tend to get excited during parties and other celebrations. The special event, not the foods eaten, is thought to be responsible for children's increased activity and excitement.