First, the spring diet
The temperature changes greatly in spring, so the nutrients in spring should be mainly high in calories. Because hot and cold stimulation will accelerate the decomposition of protein in the body, leading to the decline of body resistance, it is necessary to supplement high-quality protein food, such as eggs, fish, chicken and bean products.
In spring, bacteria, viruses and other microorganisms begin to multiply in large numbers, and their vitality is enhanced, which is easy to invade the human body and cause diseases. Therefore, you should take enough vitamins and inorganic salts in your diet. Fresh vegetables such as Chinese cabbage, rape, bell pepper and tomato, and fruits such as citrus and lemon are rich in vitamin C, which has antiviral effect. Yellow-green vegetables such as carrots and amaranth are rich in vitamin A, which can protect and strengthen the epithelial cells of upper respiratory mucosa and respiratory organs, thus resisting the invasion of various pathogenic factors; Food rich in vitamin E should also be eaten to improve human immune function and enhance the body's disease resistance. This kind of food includes sesame, blue cabbage and cauliflower.
Chinese medicine also believes that "acid should be preserved and sweetened in spring to nourish the temper". This is because the liver qi is the strongest in spring, which will affect the spleen, so it is easy to be weak in the spleen and stomach in spring. Eating more sour food will make liver function hyperfunction, so the diet in spring should be nursed back to health, so it is advisable to choose spicy and warm products and avoid acidity. Diet should be light and delicious, avoid greasy, cold and irritating food.
Second, the summer diet
The heat is pressing and the weather is hot. People's appetite is reduced and their gastrointestinal function is weakened. Many people don't want to eat greasy food at this time. They should give priority to light food, pay attention to the color, fragrance and taste of food, try to arouse appetite and make the body get comprehensive nutrition. Generally speaking, you can eat more salads, salted eggs, bean products, sesame paste, mung beans and vegetables such as cucumber, loofah, wax gourd, green vegetables, tomatoes and cauliflower. Melons are especially the top grade for relieving summer heat and quenching thirst.
In summer, when the temperature is high, people sweat more and drink more water, the gastric acid is easily diluted, the secretion of digestive juice is relatively reduced, and the digestive function is weakened, resulting in loss of appetite. In addition, people overeat and eat cold food in hot days, which will lead to gastrointestinal dysfunction or gastrointestinal discomfort and even food poisoning due to unclean food. Therefore, the diet in summer should be light, which can promote appetite, so as to achieve the purpose of health care.
You can't overeat in summer, that is, you can't eat enough, especially at dinner. The proverb says, "Eat less and live to ninety-nine." The digestion of old people and children is not strong, especially in summer. If they eat too much and can't digest it, it is easy to damage the spleen and stomach and lead to stomach problems. If you are 70% full, your appetite will continue to increase.
Eat more fruits and bitter foods, such as plows, watermelons and bitter melons. Summer is very hot, hot and humid. Eating watermelon and bitter food can clear away heat and relieve summer heat, dry dampness and strengthen spleen, and increase appetite. Sour food can be astringent, and sweating in summer is easy to hurt yin. Eating acid can stop sweating and diarrhea. For example, tomatoes have the functions of promoting fluid production, quenching thirst, invigorating stomach and promoting digestion, cooling blood and calming liver, clearing away heat and toxic materials, and lowering blood pressure.
Third, the autumn diet
Autumn is crisp and the weather is pleasant. People get rid of the heat and their appetite gradually increases. At the same time, this season is the most abundant food, with complete vegetables and fruits, and sufficient supply of beans, meat and eggs. Therefore, in the autumn diet arrangement, just pay attention to the nutritional balance. However, it should be noted that the air is dry in autumn and the human body needs water. Eat more foods containing more water, and use less spicy products such as pepper, onion and ginger. If possible, eat more glutinous rice, sesame, honey, loquat, pineapple, dairy products and so on.
In autumn, the physiology of human body also changes with the change of seasons. Therefore, the diet in autumn should be changed at any time to meet the needs of health preservation in autumn. The principle of autumn diet is to give priority to "sweetness", that is, eat more foods that clear the liver and eat less acidic foods. Traditional Chinese medicine believes that eating more acidic food in autumn will bind the spleen and cause imbalance of the five internal organs, while eating more sweets will enhance the activity of the spleen and coordinate the activity of the liver and spleen.
Fourth, winter diet.
It snows heavily and the north wind blows hard. Cold weather will strengthen human metabolism. In order to prevent colds, you can add more foods with high calorie in your diet, such as stewed meat, grilled fish and hot pot. Lack of yellow-green vegetables in winter is easy to lack vitamins and reduce the body's resistance. Therefore, we should pay attention to choosing vegetables rich in vitamins in winter, such as carrots, vegetables, spinach, mushrooms, green peppers, green garlic and fruits. Spicy food can be used for seasoning, such as pepper, onion, ginger, garlic and so on. Drive away the cold in the human body. In terms of cooking methods, various methods such as burning, stewing, stewing, simmering and boiling are adopted. Winter meals should be delicious, nutritious and appetizing.
Besides, in the cold winter, people like to drink hot drinks to warm their stomachs and bodies. However, experts pointed out that drinking overheated drinks in winter is actually a misunderstanding. Because drinking beverages with excessive temperature will cause extensive skin and mucosal damage. Protein begins to denature at 43℃, and gastrointestinal mucus will be irreversibly degraded at 60℃. When the temperature is higher than 47℃, all blood cells, cultured cells and transplanted organs will die. Therefore, don't often drink overheated drinks in winter.