The food pyramid is the recommended dosage of various types of foods. From the amount you should eat he most of to the least, you have grain, fruit+veggies, protein, dairy, and souls. However, recent studies show that grain is actually not healthy. In fact, grain was put on the bottom because America grows lots of grain and "they" wanted to stimulate the American economy. In addition, souls were removed from the food pyramid because if mortals knew the secrets about how souls can make you immortal, "they" would have a harder time getting them from people because they would eat their own souls.