A Tv ad director tries to decide how to represent 40% in his commercial about a new diet soda.

A woman on a diet tries to figure out which frozen treat to eat.

This clip explains how the body stores and removes fat. It dispels the notion that we gain weight because we eat more; rather, we eat more before we're gaining weight. It also explains how carbohydrates can contribute to weight gain.

Morgan talks to some health experts about the obesity epidemic in America and how fast food restaurants are a contributor to it. Lisa Young, a professor at New York University, illustrates how fast food companies have changed their portion sizes over time to make excessive amounts of food the norm.

A prepackaged school lunch system is prevelant in schools but is contributing to the obesity epedemic.