5. When you burn 3,500 calories, you lose a pound
Losing weight can be complex. People often oversimplify what they see to get a handle. Oversimplification is the problem with trying to put an exact number on the number of calories you need to burn to lose a pound. In reality, you may need to burn anything between 2,000 and 5,000 calories to lose a pound.
More: 10 Secrets of Naturally Thin People