If your adding food (snacks) on top of the 3packs plus a meal/4 packs your weight loss will be slower. I would suggest cutting up a slim and save bar (from your days allowance) and having a piece when your feel the need to snack. I sometimes do as Angie said and split the food allowance in to two meals, also have sliced meat and cucumber as a snack now and then, but honestly it's a rocky path for me, as i end up over indulging! best stick to the plan.