a man is allowed 90 grams of fat per day and 2500 calories.

now if im right, the more fat you eat, the bigger your stomach will get in time, but what are calories defined as and what do they do?

also what is better to burn off at the gym? calories or fat?

on the running machine i aim to burn 500-800 calories in one run depending on how i feel? how much fat burned does that equate to?