I was thinking about this the other day and was hoping someone could tell me if it is right or not. I know that 1g of fat has 9 calories. Does this also apply to body fat? According to this site (http://www.sportzblitz.net/calculators/workout-calculator.php) 30 minutes of moderate walking burns 147 calories. Does this mean by walking for 30 minutes you will lose about 16.5g of fat off your body? It seems perfectly logical, but I am probably forgetting something stupid. So, is this the case?