According to certified dietician Chelsea Emer, an average piece of Italian product and a mix of cereal with milk approximately the same number of calories. The most necessary breakfast, scientists call pizza , because it contains a lot of protein. Flakes have almost no protein and healthy fats, but a very large amount of sugar - up to half the daily norm for an adult. Pizza contains more protein, so it can give a person a charge of energy for the whole morning, if you use it during breakfast. "It has more fat and much less sugar," Amer continues. But Chelsea Emer added that people rarely limit themselves to one piece of pizza , which is not beneficial. Despite the recommendations of the American nutritiologist, her British colleague Rhiannon Lambert categorically disagrees with the fact that any pizza should be eaten for lunch. According to her, whole grain cereal will be more useful than pizza . Nevertheless, if there are no harmful additives in the pizza , and it is balanced in the content of proteins, fats and carbohydrates, it can also be eaten for lunch.