Around one-third of all American children take vitamins or supplements.
Some parents believe they help kids do better in school, but do they really work?
Limited research has painted multivitamins as the the picture of good health and stellar academic performance.
However, an analysis of New Jersey elementary school kids found no such thing.
Researchers followed nearly 700 inner-city third through sixth graders over the course of the school year.
Half received a chewable multivitamin every school day.
The others took a placebo pill.
At the end of the year, researchers found no differences in standardized test scores, grade point averages, late arrivals or absenteeism between the two groups of kids.
The results were published the Journal of the American Dietetic Association.
So should you toss your child's vitamins? Even if you have a picky eater, they could still be getting the daily-recommended vitamins and minerals.
Many foods, including cereal, milk, and orange juice are fortified with nutrients.
Many common foods - including cereal, milk and orange juice - are fortified with important nutrients, such as vitamin D and calcium.
But be sure to talk to your pediatrician to be sure.