All adolescents should receive health guidance annually about dietary habits, including ways to achieve a healthy diet and safe weight management. Your health care provider will address any potential red flags around your teen's weight or diet. If you, your teen, or your health care provider identify weight, height, or BMI issues, the annual checkup provides an opportunity to discuss and decide if there is an appropriate course of action.
Health care providers use BMI, calculated using height and weight, to help assess body fat. It's important to remember that what's considered a "healthy" BMI is based on age and gender.