Body Fat Lab

Welcome to the Shape Up America! Body Fat Lab, an informative, interactive, fun way to learn more about your percent body fat and the role it plays in your overall health.

Tell Me Why

Here you will learn the value of knowing and tracking your percent body fat.

Body Fat Basics

Not sure what the term "body fat" means or what percent of body fat is healthy for men and women? Here you will find the answers to these and other questions.

Body Fat Through Life

Learn more about what happens to your body fat during important phases of your life.

Body Fat and Health Risk

What are the consequences of having too little or too much fat? How is health risk assessed? The answer to these questions can be found here.

Measurement Tools

Visit this section to learn more about how a person's percent body fat is determined and how each of these tools "measures up".

All About Me

Want to find out your percent body fat (if you don't already know it) and your associated health risk?

Taking Action

You know your percent body fat and associated health risk. What's next? This section can help you take these important next steps.

My Progress

Here are some simple tips for keeping track.

The Body Fat Lab is designed for adults aged 18 and older. It is not intended for pregnant and lactating women, the elderly/frail, and adolescents under the age of 18.

Take Our Survey


We need your help! Periodically we conduct a survey of our visitors and use the results to help guide our planning process for future programming. We really want to know what you think, and your answers will help us improve the Shape Up America! organization. Please take a few minutes to share your questions, thoughts and ideas. Your responses will be kept strictly confidential.

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Donate to SUA


Please consider a donation to Shape Up America! Your tax-deductible contribution helps us develop new initiatives to address the problem of obesity in America.

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