1, children’s breakfast: children is the peak period of growth and development, focus on supplementing rich protein and calcium is quite important. First of all, we should eat a small amount of high sugar content of food, in order to prevent dental caries and obesity. If conditions permit, children’s breakfast is usually a cup of milk, an egg and a slice or two of bread as the best. Milk can be alternated with fruit juice and other beverages. Bread can sometimes be replaced by cookies or steamed bread. 2, teenagers’ breakfast: teenage body development faster, often muscle, bone a long, especially need enough calcium, vitamin C, A and other nutrients to help the body’s growth and development. Therefore, the appropriate breakfast for teenagers is a cup of milk, a fresh fruit, an egg and two dry points (mainly steamed bread, bread, cookies and other carbohydrates). 3, middle-aged people’s breakfast: people in middle age is “eventful”, shoulder work, family, the two major burdens, the physical and mental burden is relatively heavy, in order to slow down the aging process of middle-aged people, their diet should be rich in protein, vitamins, calcium, phosphorus, etc., but also to maintain a low-calorie, low-fat. You can choose skim milk, soy milk and other beverages, food is relatively simple, but do not eat doughnuts, more sweet (added sugar) and other grains, general steamed bread, bread can be, but the bread does not add the kind of oil on the good. You can also choose to eat a fruit. If you want to eat eggs, do not eat the yolk.