Staying healthy means keeping your child at a healthy weight.
When your child is a baby, your pediatrician will keep a close eye on weight and height to make sure your child is growing properly.
When your child turns 2, your pediatrician will start charting your child's body mass index (BMI). This number helps the doctor decide if your child is underweight or overweight.
While a pediatrician or nurse is the best person to figure out your child's BMI, you can measure it at home using this formula from the Centers for Disease Control and Prevention.