(2) Various foods that teenagers need every day, such as 300-500g of grain (male high school students should absolutely guarantee 500g of staple food every day), 0/00-200g of meat and poultry/kloc, 50- 100g of bean products, 50- 100g of eggs and 350-500g of vegetables. Others should also eat more fruits and nuts, kelp, seaweed and seafood, mushrooms, fungus and other algae foods, and also choose to eat once a week. Teenagers need more calcium, and eat more shrimp skin, sweet and sour pork ribs, fried fish (fish bones are edible), bone soup and so on. And supplement the calcium needed by teenagers' bones through diet.
(3) Arrange three meals a day: the so-called reasonable nutrition should meet the physiological function and actual needs, such as choosing foods with high heat energy for breakfast to ensure that there is enough heat energy for morning activities. Some developed countries attach great importance to breakfast, not only milk and orange juice, but also fried eggs, jam, bread and meat. Lunch should not only supplement energy consumption in the morning, but also reserve energy for consumption in the afternoon, so lunch food should be rich in protein and fat. As for dinner, it is not advisable to eat too much protein and fat, so as not to cause indigestion and affect sleep. It is more appropriate to eat whole grains and light vegetables for dinner.