2. Fruits: such as pineapple, papaya, apple, kiwi, grapefruit, guava, lemon, watermelon, cantaloupe, strawberry, etc. It is low in calories and rich in vitamins and cellulose, and contains more antioxidants, which helps to improve the skin condition;
3. Meat: such as chicken breast, fish, shrimp and lean beef. , relatively low calories, rich in protein, can enhance physical fitness and improve the efficiency of study and life;
4. Cereals: such as corn, purple potato, yam, buckwheat, oats, brown rice, barley, whole wheat, rye, etc. , not only low in calories, but also rich in cellulose and various minerals, which is beneficial to human health.