A person is considered obese when his or her weight is 20% or more above normal weight or his or her body mass index (BMI) is over 30. "Morbid obesity" means that a person is more than 100 pounds over normal weight or has a BMI of 40 or higher. Follow the links below to find WebMD's comprehensive coverage about obesity, its causes, treatment, and much more.
Fit kids come in all shapes and sizes, just as fit adults do. And many experts say we should keep this foremost in mind when it comes to children who aren't thin, but who eat healthfully, have lots of energy, and exercise almost every day.