Yet, you can lose weight on Mountain Dew and Doritos by counting calories.

  Little Debbie Snacks, Oreos, Doritos and Diet Mountain Dew sure don't sound like diet food. But a nutrition professor at Kansas State University ate only convenience store snacks for two months and lost 27 pounds.

  The key? Moderation.

  Mark Haub kept his food intake below 1,800 calories a day -- no extra exercise required.

https://www.npr.org/2010/11/12/131286626/professor-s-weight-...