A lot of physical exercise or strong physical labor often leads to fatigue. In order to eliminate fatigue and improve symptoms in time, in addition to strengthening the finishing activities before and after and carrying out appropriate physical therapy, paying attention to the conditioning of diet and nutrition is an important part that can not be ignored in modern life. Intake of certain nutrients before and after exercise can not only delay the appearance of fatigue, reduce the degree of fatigue, but also accelerate the elimination of fatigue. Fatigue is a physiological state, as long as it is not caused by illness, it will not affect health. Physiology believes that fatigue is a protective mechanism of human body. Meanwhile, fatigue is a targeted response to the amount of exercise. When dealing with diet nutrition and eliminating fatigue, the most basic requirement is that the intake of nutrients should be adapted to the intensity of exercise and the whole body consumption. In other words, it is necessary to keep the exerciser's energy intake and energy consumption in balance, so that my weight will not increase or decrease. If you lose weight, it will cause the mobilization and consumption of body components, which will reduce the ability of various functions of the body; If you gain weight, it will increase your physical burden and easily lead to fatigue. So what nutrients do you need? We know that some long-term exercise and physical labor consume a lot of sugar in the body, so we need to pay attention to fully supplement the sugary diet first, and then fully supplement the diet rich in vitamins, especially B vitamins, such as vitamin B 1, B2, acid, vitamin C, etc., because they all participate in the energy metabolism process and play an important role in eliminating nervous system fatigue and regulating hormone system function. It is also important to supplement minerals, especially salt and calcium, because they can change the pH balance after exercise, restore osmotic pressure and relieve muscle fatigue. In addition, a little iron should be added to accelerate the recovery of hemoglobin. Fatigue after fitness exercise is often accompanied by decreased digestive function and loss of appetite. In order to promote the elimination of fatigue as soon as possible, we must try to increase the appetite of exercisers. So you must pay attention to the following points when you arrange your diet: 1. Don't drink too many cool drinks, such as cold water and fruit juice. 2. Choose digestible food. Animal protein can eat eggs, sausages, fish and so on. Vegetables are also ideal food. 3. In order to supplement salt, you can drink delicious salty soup or eat salted preserves. 4, eat more fruits, which can be used as a source of vitamins and can regulate appetite. 5. Vitamins, iron and minerals can be supplemented with foods such as milk, milk powder and pig liver. 6. Increase snacks, ice cream, chocolate and other foods. 7. Stimulating spices with fragrance can be added to the food to increase appetite. 8. When the body is tired and the appetite drops obviously, the staple food can be changed to noodles, porridge and other foods. If conditions permit, diet nutrition plus some physical therapy will have better practical effect.