Total accuracy... The Bod Pod and traditional hydrostatic weighing agree within 1%!
Only by accurately assessing body composition will one know exactly what makes up their weight, enabling sensible decisions regarding nutrition and exercise programs to be made. It's the single best way for a person to get the "whole picture" of what is really going on in their body.
WHY IT MATTERS:
Body composition (% of fat and lean mass) reflects the results of both physical activity and nutritional practices.
Body weight alone can be very misleading. The scale cannot tell the difference between a pound of fat and a pound of muscle. Over time, people tend to gain fat and lose muscle without an obvious change in their weight. Even though we need a certain amount of fat in our bodies to ensure good health, excess body fat has been found to increase the risk of diseases such as cancer, diabetes, and heart disease. In fact, the Centers for Disease Control and Prevention (CDC) has now declared obesity an epidemic, with 66% of adult Americans either overweight or obese (having excess body fat). On the other hand, too little body fat can also pose a number of health risks, especially for women.