What are the requirements of the 24 solar terms for healthy diet?

(1) Dietary health requirements of six solar terms in spring

Spring, from the day of beginning of spring to the day of long summer, includes six solar terms: beginning of spring, Rain, Sting, Equinox, Qingming and Grain Rain.

Spring is the first of the four seasons and the beginning of Vientiane's renewal, just as Huangdi Neijing said: "Spring is March, which is called Chen. Heaven and earth are born and everything is glorious. " It means that when spring returns to the earth, the ice and snow melt, the yang in nature begins to sprout, everything recovers and everything flourishes. "Man corresponds to heaven and earth". At this time, the yang of the human body also follows nature and diverges upward and outward. Therefore, it is necessary to master the characteristics of qi-boosting and relaxation in spring, and pay attention to protecting the yang in the body to make it constantly abundant and gradually vigorous. Anything that hurts the yang spirit and hinders it should be avoided. This principle of health preservation should run through the diet.

In terms of diet in spring, we should first implement the principle of "nourishing yang in spring and summer" proposed in Huangdi Neijing, that is to say, in terms of diet, we should eat more foods that can warm and replenish yang.

With the different climates of the four seasons, we should also make differences when choosing the four flavors of food: cold, hot, bitter, sour, spicy and sweet. Spring is the season when human liver-qi is vigorous, and the relationship between liver and spleen is the closest, which means that liver-qi will affect spleen in spring, so spleen and stomach weakness is prone to occur in spring. Sun Simiao, the king of medicine in the Tang Dynasty, said that "it is advisable to keep sour and sweet in spring to nourish temper", which means that when spring comes, people should eat less sour food and more sweet food, which has the benefits of strengthening the spleen and stomach. According to the characteristics of rising yang in spring, spicy, sweet and warm products should be selected. Spicy sweets help yang rise, warm foods help yang protection, and the diet should be light. Therefore, the choice of healthy food in spring plays an important role in human health.

(2) Food hygiene requirements of six solar terms in summer.

Summer refers to the lunar calendar from April to June, that is, from the day of long summer to the day of beginning of autumn. It includes six solar terms: long summer, small full, awn seed, summer solstice, light summer and great summer.

When describing the characteristics of summer solar terms, Huangdi Neijing wrote: "Xia San month is called beautiful month, and everything is gorgeous." This means that in the three months of summer, the sun is shining, the geothermal water is steaming, the earth and the atmosphere interact, and most plants blossom and bear fruit, so it is a beautiful season for all things to flourish.

In the four seasons of the year, summer is the season with the highest yang, and the climate is hot and full of vitality. For people, this is a period of vigorous metabolism. The human body has both yang and yin, and the blood circulation is correspondingly vigorous and active on the body surface. In order to adapt to the hot climate, skin pores are opened to drain water and sweat is discharged. By sweating, regulate body temperature to adapt to the hot summer climate. When talking about how to maintain health in summer, Wang Qishan pointed out in Xu Li Yuan Jian: "We should prevent heatstroke in summer, but also prevent heatstroke and cool down, and prevent dampness in long summer." This paper clearly points out the basic principles of diet health in summer: heatstroke prevention in midsummer; Protect against moisture and evil in long summer. At the same time, we should pay attention to protecting the human body's yang, so as to prevent the excessive greed and coldness in summer from hurting the human body's yang, that is, "nourishing the yang in spring and summer" as pointed out in Huangdi Neijing. In other words, even in the hot summer, we should still pay attention to protecting the yang in the body, and the diet should be less bitter and more spicy.

(3) Dietary health requirements of six solar terms in autumn

Autumn is the day from beginning of autumn to beginning of winter. In the meantime, it passes through several solar terms, such as midsummer, white dew, autumnal equinox, cold dew and first frost, and the Mid-Autumn Festival (August 15th of the lunar calendar) is the boundary of climate change.

"Guanzi" pointed out: "Autumn begins in the shade, so everything is harvested." Yin Qi started here, which means autumn. Due to the gradual collection of Yang Qi, Yin Qi gradually grew up. Everything is a harvest, which means that everything is mature and it is time to harvest.

Judging from the climate characteristics in autumn, the physiological activities of the human body change from hot to cold, that is, the transition stage of "yang eliminating yin growing" and the transition from "summer growing" to "autumn harvest". Therefore, the principle of "nourishing" can not be separated from diet and health preservation in autumn, that is to say, health preservation in autumn must take the maintenance of yin in the body as the primary task. As Huangdi Neijing said, "nourishing yin in autumn and winter". Nourishing Yin in autumn and winter refers to nourishing and storing Qi in autumn and winter to adapt to the law that Yin gradually grows and flourishes in nature, so as to lay the foundation for the growth of Yang in the coming year, and the taste of diet should be reduced to spicy and sour.

(4) Dietary hygiene requirements of six solar terms in winter.

Winter begins in beginning of winter, and passes through light snow, heavy snow, winter solstice, slight cold and severe cold until the day before beginning of spring.

In winter and March, plants wither and insects freeze, which is the season when everything in nature hides essence, and the yang of the human body should also be hidden in it. Therefore, the basic principle of winter diet is to conform to the latent yang in the body, and to gather yang and protect yin as the foundation. Because the yang is hidden and the metabolism level of human body is relatively low, it is necessary to rely on the "kidney" as the motive force of life to ensure that life activities adapt to natural changes. Traditional Chinese medicine believes that the total source of human energy and heat lies in the kidney, which is often called "firepower". Strong "firepower" reflects strong kidney function and strong vitality. On the contrary, the vitality is weak. In winter, normal renal function can adjust the body to adapt to the changes in severe winter, otherwise, it will cause metabolic disorders and diseases. Therefore, the taste of healthy diet in winter should be salty and bitter to nourish the heart.