| | Family Health | Toddlers Health Is BMI a 12 year old child? Body mass index (BMI) is not a child. It is a measure of body fat based on height and weight. It is used to screen for weight-related health problems such as obesity. Toddlers Health - Related Articles The Best Protein Foods How to Know if There is Asbestos in Buildings Symptoms of Esophageal Motility Disorders What exactly are the risks for lasik eye surgery? What is humanistic education? Which Statements true about blood alcohol content? What Foods Help Your Hair Grow?