It is very common to experience a lack of energy after a fever. When the fever rises, the energy consumption of the body is relatively large, oxygen consumption and energy consumption are relatively large, so the phenomenon of weakness will appear. Therefore, after a fever, you must pay attention to rest and replenish nutrients, which is better for restoring strength, and not to eat too much nutrition. You can eat egg noodles, rice porridge, millet porridge or steamed eggs, are better, or eat fish with high protein content, the protein content of fish is higher, for the replenishment of physical energy is better, and is more digestible food, for the fever after the nutritional supplement, the effect is still better. You can also eat more fresh fruits and vegetables rich in vitamins, which are also very good for replenishing physical strength, especially fruits and vegetables rich in vitamin B and vitamin C are recommended.