"Guanzi Entering the Country": "Advise children to eat well, ask what they want, and seek what they like. This is called old. " Hanwang praised "On the Virtue of Four Gentlemen": "Reduce rice, humble the palace view, save the field officials and damage the garden. Bing Xin's Premier Week, which will live in our hearts forever: "It's amazing that the Prime Minister's diet is so simple. Dietary energy is not high, there is enough high-quality protein, animal fat is low, and inorganic salts and trace elements (including vitamins) are rich, which can meet human needs. Because the nutrition is balanced, the nutrition is reasonable. The dietary structure of the elderly is characterized by abundant milk, moderate poultry, fish and lean meat, and a small amount of eggs and liver. The staple food is quantitative, including coarse grains and miscellaneous grains. There are many fresh vegetables and fruits. Besides, we often eat some nuts, bacteria and algae.

Good eating habits, 3-5 meals regularly every day. Eat regularly and quantitatively. Eat well, eat well, but you are too hungry. Every meal is seven or eight points full. Avoid gorging and overeating. Not picky about food, not partial eclipse, are less salt, less sugar, less fat, mostly light food. Carefully cooked, all kinds of food are coarse and fine, with good meat, soft diet and easy digestion and absorption.

There are many famous health-preserving sayings and beneficial folk songs in the hometown of longevity, such as "breakfast should be early, lunch should be full, dinner should be less", "more vegetables and less meat, coarse rice and light rice can prolong life", "eating less at night can prolong life by 99 years", "fish makes a fire, meat produces phlegm, vegetables and radishes keep safe" and so on. According to Li Li, a researcher at Shenyang Palace Museum, the Qing Dynasty was the last feudal dynasty in China. It summarizes and absorbs the traditional essence of China's food culture, and develops the palace food to the peak.