Lisa and Randy

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An episode of the Discovery Health Channel show Honey, We're Killing the Kids featured the Humphries—a family of five facing a huge health crisis.

Lisa is a Pilates instructor who works out five days a week, and her husband Randy is a fitness fanatic. But their three young boys spend their days planted on the couch watching television and gorging on junk food—candy, chips and fatty foods.

Cody, who is 10, hides sugary treats all over the house. At 130 pounds, he has double the body fat that he should. Justin, who is 8, eats 3,000 calories a day and weighs as much as a 14-year-old. Joshua, only 6 years old, can barely climb the stairs without getting out of breath.