It may not be healthy, but Mark Haub, a professor of human nutrition at Kansas State University, was making a point; namely, that when it comes to weight loss, despite what people selling things want you to believe, all that matter is calories. Eat fewer than you burn and you are guaranteed to lose weight.
So to prove it he ate a diet of Twinkies, powdered donuts, Doritos chips, sugary cereals and Oreos every 3 hours - and no regular meals at all.
After 10 weeks he had lost 27 lbs.