Why can drinking porridge nourish the body?

Perhaps because of the improvement of life, people nowadays generally don't drink porridge except breakfast. In fact, if you want to nourish your body, prevent diseases, and live a long and healthy life, you should always drink porridge. Since ancient times, China's way of keeping in good health has advocated "porridge for the elderly". Li Shizhen once said in the Ming Dynasty, "Eating a big bowl of porridge every day will make your stomach empty and your stomach weak. The tonic is not fine, but also soft and greasy, and is compatible with the stomach. It is also the most wonderful way to eat. " This makes the truth of "porridge" clear enough. Indeed, many elderly people have damaged teeth, weak gastrointestinal function, and porridge is easy to chew and slow to pass through the intestine, which not only does not damage the stomach gas, but also fully absorbs the nutrition in porridge. In addition, no matter rice, millet or corn, once cooked into porridge, its nutrients will be in a water-soluble state, which is especially suitable for the elderly and infirm to take nutrition. Lu You was the beneficiary of "porridge" in the Southern Song Dynasty. He suffered from stomach trouble in middle age. Influenced by Zhang Wenqian's porridge theory, he insisted on eating porridge and recovered after one year. So, he wrote the well-known poem "Eat Porridge": "Everyone in the world is an elder, but I don't know how many years are in the present; I want to learn from the people and only eat porridge for the gods. " But the porridge mentioned by Lu You is not only simple rice porridge, but also medicated porridge with rice and traditional Chinese medicine. In fact, some porridge is difficult to distinguish between medicine and food, such as "millet mung bean porridge". Rice and Chinese medicinal porridge is a combination of food supplement and medicine supplement, diet therapy and medicine therapy, which has the superiority of synergistic effect of rice and medicine. For example, "porridge for tonifying deficiency and strengthening body resistance" is made by boiling ginseng, astragalus root and japonica rice together. Ginseng (or Radix Codonopsis) and Radix Astragali have good nourishing and strengthening effects, while japonica rice also has the functions of strengthening the spleen and stomach and tonifying qi and blood. Combining them into porridge can not only give full play to the homology of medicine and food, but also contribute to the digestion and absorption of ginseng and astragalus in gastrointestinal tract. For the elderly, weak, edema due to qi deficiency, palpitation and shortness of breath, medicated porridge, especially nourishing medicated porridge, can not only satisfy hunger, but also treat it while eating, with no side effects after long-term use. Therefore, the ancients called medicinal porridge "the best tonic in the world." Of course, since medicinal porridge has medicine, we should consider our own physical condition, pay attention to the characteristics of the season, and pay attention to the scientific decocting method. In order to help readers understand medicinal porridge, we want to extract several porridge therapy songs to end: if you don't have insomnia, add white lotus to porridge; If you want good skin, cook red dates with rice porridge; Weakness of trachea, adding yam to porridge; Ensure that the liver function is good and the porridge is wonderful; If you want to keep your eyes open, add celery to your porridge. ...