People always ask what to eat or not to eat in order to be good for the body, or often hear the recommendation of a certain food specifically for certain diseases beneficial or good for the body. In fact, these statements are not entirely correct, each food has its own nutritional characteristics and value, there will be suitable and contraindicated people, and can not simply label certain foods as “perfect”, “optimal”; certain foods can assist in the treatment of disease, but Also need to be judged according to the condition. As a healthy person, you should not be blind, and you should take a reasonable dietary pattern instead of over-eating certain foods. People need dozens of nutrients to meet the needs of the body’s own growth and development and to maintain normal physiological activities. Many nutrients are not synthesized through the body and must be consumed through eating a variety of different foods. In the food world, there is no best or worst food, and there is no super food, there is no single food can fully meet all the daily needs of the human body. However, some food components are more complete, the ratio is reasonable, the nutritional value is relatively high, such as eggs; while some other food components are not complete, the ratio is not good, the nutritional value is general, such as winter melon; also some food contains some nutrients are high, while some other components are low, such as grapefruit is a high potassium low sodium food; or some food contains nutrients is a certain type of people need to limit, such as The yolks of eggs with high nutritional value contain nutrients needed for infant development, but their high cholesterol content is really one of the nutrients that people with hypercholesterolemia need to avoid overconsumption, etc. Nowadays, diabetes, hypertension, gout, obesity, cancer and many other diseases are related to diet, and there are many so-called dietary remedies for these diseases circulating widely among the population. Some people believe that certain foods can assist in relieving and controlling diseases, but if you rely solely on such foods and ignore other aspects, you may lose one thing and delay your illness, “everything needs to be in moderation”, food is the same, even if it is a food with high nutritional value and positive health significance, you should avoid excess; between foods, you should Scientific and reasonable combination, in order to maximize the nutritional value of food, health effects. For example, modern research suggests that the mucus protein contained in Chinese yam can play a role in delaying the rise of blood sugar, so some diabetic patients do not control the diet based on a large number of food, the results did not lower blood sugar, but rather blood sugar rose, Chinese yam is indeed a healthy ingredient, but it is a carbohydrate-containing potatoes, but also has a calorie, a large number of food will increase calorie intake and blood sugar rise; For example, eating more meat, eggs and milk and other high-quality protein-rich food can improve the nutritional status of malnourished people, but it can aggravate the condition of people with liver and kidney insufficiency. It can be seen that how to choose the right food for oneself, can not be the clouds, it is recommended that according to their own situation, choose the appropriate food, take the appropriate dietary structure, in order to truly maintain health. In recent years, the dietary structure of the country is becoming more and more westernized, the consumption of meat and fats has increased significantly, while vegetables and coarse grains and beans have been reduced, making the incidence of a variety of chronic diseases has increased but not decreased, and after getting sick, believe in some dietary prescriptions, but the results delayed the disease. Compared with a single food, a good dietary structure is more important. Healthy diet emphasizes balanced, proportional eating of various types of food, diversified food choices, the more mixed the better to eat. A proper dietary structure is more beneficial to health and disease prevention than individual foods. The incidence of cardiovascular diseases and hypertension is lower among people who adopt these dietary patterns, which are recommended by medical professionals and nutritionists, and they are the most well-known and widely recommended dietary patterns in the world. Our traditional dietary pattern in the East emphasizes the intake of rice, potatoes, fruits and vegetables, fish, etc., which is also a healthy dietary structure pattern and is worth promoting. The Dietary Guidelines for Chinese Residents and the Dietary Nutrition Tower formulated by the Chinese Nutrition Society according to the characteristics of Chinese people can well reflect this model, emphasizing reasonable matching, balanced diet and diversified food choices. However, in practice, it is impossible to arrange our daily diet exactly according to the recommendations of the Dietary Guidelines and the Pta, but we can also benefit if we can grasp the essence of them and maintain a reasonable, balanced, and matching dietary structure in general. To prevent diseases and adopt healthy dietary patterns, but do not be overly serious, do not follow the book, learn to make their own diet over a period of time tend to balance, reasonable, tend to the amount and ratio recommended by the guidelines, so as not to lose the joy of life and diet.