There's a perception that "healthy eating" doesn't take place when you eat out. Restaurants, gas stations, fast-food establishments — they're all spoken of as if they're part of the problem. But are they? Frank Beard, an endurance athlete from Iowa, wanted to do something extreme and change the conversation, drive. So he recently conducted an experiment. To prove that it's possible to stay healthy while eating out, he consumed only gas station food for 30 days. Find out what happened.