Anna Dietary fat is more readily stored as body fat, if only because the body must work harder to convert carbohydrates and protein to fat, while dietary fat can be stored as is. That increased work equates to a slight loss of calories. “Excess” is the key word here. There is no evidence that dietary fat is stored in any greater amount than carbs or protein if you are balancing calories in from the diet with calories out in physical activity. It is overeating that gets us into trouble, and it is much easier to overeat fat, since it is such a concentrated source of calories.   Photo credit: Mark Nye via Compfight