Do you know that a slice of pizza contains in at least 200 to 250 calories, so even if you burn your fats running through your treadmill it is more advantage if you would cut your cravings for pizza. And be a nutrient wise; try the slice of a whole wheat pita with ricotta cheese and tomatoes. Less calories the better, it also has less salt and digestible fibre. And if you are hungry before bedtime or in between meals, prepare a small bowl or three cups of popcorn instead of that junk foods or chips. Sans salt and butter only contains of 100 to 150 calories compare of that potato chips. If you want to add more flavor into your popcorn then sprinkle two tablespoons of Parmesan, all in all you only have 200 calories and you have the healthy meal.