The number of calories in a pound is far from set in stone ... and sometimes suggests kicking it up to 300 minutes per week. Some exercises are superior calorie burners than others.

Excess calories are stored within specialized fat ... Experts now agree that the 3,500-calorie-per-pound rule works fairly well in the short term and for those who want to lose only a few pounds.

If your goal is to lose 1 to 2 lb a week, you need a daily caloric deficit of 500 to 1,000 calories per day. To lose 2 lb in a week, let’s say your daily caloric requirement is 2,200 calories.