Kids and Teens
The majority of kids don't drink enough milk each day (four cups) or eat enough salmon to get their recommended vitamin D. "Supplementation is important because most children will not get enough vitamin D through diet alone," confirms AAP spokesman Dr. Greer. That means that children and teens need to take a daily vitamin to keep their bones strong and potentially ward off serious diseases like cancer and diabetes.
The good news is that most over-the-counter chewable multivitamins for kids contain precisely 400 IU of vitamin D in each pill. Read the label on your children's daily vitamin to double check.