Nobody can resist a hot slice of pizza, but it is important to keep in mind that this indulgent food tends to be high in calories. Depending on the toppings you choose, however, pizza can provide some nutritional value – simply check the nutrition label to find out. Most of the calories in pizza come from carbohydrates (in the dough) and fats (in the cheese), but the nutrition facts will show that pizza with meat-based toppings can be rich in protein as well. Refer to the calorie chart for your favorite type of pizza to determine its calories and nutritional information.