Interactive Tools

Experts are increasingly urging people to know their BMI, a figure that takes into account not just weight but also height to indicate body fat.

BMI, or body mass index, uses weight and height to calculate weight status for adults. BMI for children and teens also takes into account gender and age because healthy body fatness differs between boys and girls and changes as they grow. This BMI calculator will help you determine if your child is at a healthy weight.

There is an epidemic of obesity in this country, health experts say. But what is obesity? How is it measured?

Dieting is temporary when it comes to losing weight. To keep weight off you actually have to change your lifestyle. Why is it so hard? For one thing, we may not know as much as we think. Take our quiz to test your knowledge.

Find out how much you know about the newest dietary guidelines and how they differ from the old food pyramid.

The questions in this assessment ask about risk factors—conditions that may put you at risk for developing type 2 diabetes. The American Diabetes Association (ADA) states that the more risk factors you have, the more likely you are to develop diabetes.