A healthy eating diet prevents nutritional deficiencies and protects against infectious diseases. A good diet should be varied and rich in nutrients that can improve the body’s defenses. For food to be healthy, it must be composed of proteins, carbohydrates, fats, fiber, vitamins, calcium, and other minerals. This is achieved by varying the types of cereals, meats, vegetables and fruits you consume, alternating the colors of the food. Of course, all in moderation, nothing in excess.