Pasta supplements carbohydrates, such as bread, jiaozi, steamed stuffed bun, noodles, biscuits and compressed biscuits. Protein should be solved with meat, such as fish and lean meat, not fat. Vitamins are maintained by fruits and vegetables. The ratio of these three nutrients is 50: 10: 40. As long as you eat enough carbohydrates every day, you can ensure basic nutrition. The best carbohydrate is pasta. As long as three bowls of noodles, one egg and two fruits a day are enough for nutrition. If it is still too expensive, buy military compressed biscuits, which are full of calories and nutrition. But you can only use it when you are hungry. In this way, your daily living expenses can be reduced to less than ten dollars. When supplementing protein, we must pay attention to the classification, such as fish, beef and chicken. No matter what kind of meat we eat, we should choose lean meat. Because lean meat is high in protein and low in fat. As a student, you can't eat high-fat food because you use your brain instead of your physical strength.

How to judge whether your nutrition is good or not? I won't get tired easily in class, I feel energetic and my skin is a little bloody. Don't exercise too much. Because you don't eat well, there is no need to take in too much nutrition.