First, the taste is light, and the five flavors of sour, bitter, sweet, spicy and salty should not be too biased.

For example, Huangdi Neijing said, "Five flavors harmonize, strengthen bones and muscles, smooth qi and blood, and prolong life". If "the taste is too sour, the temper is absolute; The taste is too salty, the pulse is solidified, and the heart is depressed; Too sweet taste leads to bone pain, hair loss and kidney failure; The taste is too bitter, the skin will be dry and the stomach will hurt; If the taste is too pungent, the muscle tips and claws will be dry and the five flavors will be hurt. "

Second, eat more vegetarian food, eat less meat and drink less. For example, Sun Simiao in the Tang Dynasty said that "the key to keeping in good health is to eat less meat", and that fat meat and wine are rotten food. "If you eat too much fat, you will get sick, and if you drink too much yeast, you will accumulate alcohol."

2. Diet control

Ge Hong of Jin Dynasty put forward that "the purpose of health preservation is not to eat enough but to drink enough". Tao Hongjing in the Liang Dynasty explained that "overeating, qi stagnation and pulse blockage, and poor blood gas will hurt you". In the Ming Dynasty, Lao Lao Heng Yan said that "eating less is always beneficial, and the spleen and stomach are easy to grind and transport, which is to transform essence and blood. Otherwise, eat more until you hurt yourself, so eat less to calm your spleen. " This paper expounds the significance of diet control from the perspective of protecting the function of digestive system.

3, the diet is suitable for people.

Traditional Chinese medicine believes that the human body has different physical properties such as cold and heat, and all foods also have the characteristics of warmth, coolness, moistening, dryness, tonic and diarrhea. In the choice of food, we should pay attention to whether it is suitable for the physical properties of the human body. The so-called "suitable for health care, not suitable for health care."

4. Eat according to time.

The change of climate in natural seasons will inevitably have an important impact on the body. Adjusting diet with seasonal changes is an important part of traditional health preservation methods. For example, in spring, everything germinates and yang develops. At this time, we should eat more food with germination to help the yang rise; Summer heat burns people, and yin and body fluid are easy to hurt. At this time, you should eat more sweet products to clear away heat and promote fluid production.

Extended data:

In autumn, the climate becomes cool and dry. At this time, we should eat less pungent things and use more products that moisten and nourish yin to moisten and nourish the lungs. Everything is hidden in winter, and the climate is cold. At this time, we should eat less cold things and use products that warm the yang and tonify the kidney to protect the yang.

For example, people with deficiency and cold constitution should eat more warm food instead of raw and cold food. For example, people with yin deficiency and excessive fire should eat more sweet and nourishing food instead of warm and spicy food. In this regard, health scientists of past dynasties have accumulated rich experience.