The problem is: human body is very energy efficient, and processed food is very calorie dense. Burning enough calories to make up for all the junk food is almos

The problem is: human body is very energy efficient, and processed food is very calorie dense. Burning enough calories to make up for all the junk food is almost impossible, except maybe for professional athletes that spend 5+ hours a day training or competing. You can't outrun a doughnut, basically.