1, fresh
The original flavor, whether it is grain crops, vegetables, fruits or aquatic products, should be made into food as soon as possible after harvesting, picking or fishing, and should be eaten fresh to keep the original flavor of food as much as possible.
2, the taste is light
Controlling salt intake advocates that the daily salt intake should be reduced to less than 6 grams. Salt is one of the basic substances in our body. However, excessive intake of salt will increase the salt concentration in the blood. At this time, in order to restore the original normal blood concentration, blood vessels will forcibly absorb the water outside the blood vessels into the blood vessels, which will cause a large increase in the blood volume in the blood vessels, the blood volume discharged from the heart will also increase greatly, and the pressure on the blood vessel wall will also increase accordingly, so the blood pressure of the human body will increase.
Long-term excessive intake of salt will often damage the stomach wall, and repeated repair of the stomach wall after injury will increase the possibility of cancer. At the same time, the damaged gastric mucosa is the most suitable environment for Helicobacter pylori, which is one of the main causes of gastric ulcer and gastric cancer. In addition, excessive intake of salt may also lead to the imbalance of trace elements inside and outside the cell, which will not only form gastric cancer, but also cause other kinds of cancer.
3. Mainly vegetarian.
Young people who eat less meat are usually busy with work, have greater physical and mental consumption and mental stress, and their autonomic nervous balance is easily affected, and their immunity will also decline. Therefore, it is necessary to supplement some meat foods rich in animal protein.
Chinese medicine believes that pork, beef, chicken and other foods belong to "flesh and blood", which means that these foods with high fat and high protein can replenish qi and blood, replenish essence and tonify deficiency, which is not only helpful for the growth and development of teenagers, but also essential for the health of middle-aged and elderly people.
However, the intake of these meat foods must be controlled, and vegetables and fruits should be consumed as much as possible in the daily diet. Nutritionists suggest that the best ratio of vegetables to meat dishes is 8: 2 for middle-aged and elderly people. Because through research, it is found that vegetables and fruits contain effective ingredients other than general nutrients-new phytochemicals. Although its content in every vegetable or fruit is very small, it has antioxidant effect, can greatly improve human immunity, prevent cancer, and is of great benefit to maintaining human health.
4. Variety and reasonable collocation ratio.
Every year, Japan holds a national intelligence test for teenagers, and every time a group of students with high IQ and good grades emerge. After every intelligence test, media reporters have to interview these high IQ students to understand their living habits. It turns out that their parents have made great efforts in their daily diet. Of course, this does not mean giving children delicacies every day, but scientifically adjusting the daily menu, paying attention to the diversification of food varieties and reasonable collocation.
5, do not have enough to eat, chew slowly.
Years of scientific experiments have proved that preventing overeating can keep the "rejuvenation hormone" in the body from disappearing. It is found that health of the elderly with 100 or above has a similar feature, that is, its weight has not changed much compared with that in its twenties. Further understanding, they have no habit of overeating.
There are many similarities in the "secret" of centenarians' health and longevity. One of them is that they can control their food intake, chew slowly when eating, and chew 20 ~ 30 times every meal.
The advantage of chewing slowly is that food is fully mixed with saliva and digestive enzymes in the mouth, providing complete digestion, reducing the burden on the stomach and intestines, and nutrients are more easily absorbed; At the same time, because food is dissolved in saliva, the toxicity of carcinogens and food additives can be reduced. In addition, in the process of chewing slowly, when you eat 2/3 of the previous amount, your stomach has already felt full, so you can stop eating. Therefore, the eating habit of chewing slowly is a good way to control food intake and be beneficial to health.