At the dinner table, I often hear many people say: eat less, eat more vegetables, rice has no nutrition, and nutrition is all in the vegetables. There are also some women who pay too much attention to their figure and regard this as a "wise saying" to lose weight. On the surface, this seems very reasonable, however, from the perspective of scientific nutrition, if it continues like this for a long time, it will be extremely unfavorable to health.

The main component of rice and pasta is carbohydrate, which is economical and can be directly transformed into calorie nutrition. Our Chinese people have always regarded rice and pasta as necessary foods since ancient times. A nation's dietary physiological habits and nutrient absorption laws can not be easily changed in one or two generations, but it takes tens of thousands of years of life evolution to form.

From the material structure of the human body, 99% of the human body and its organs are composed of water, and carbohydrates are the main "basic raw materials" needed by our body. From the point of view of gastroenterology, in a reasonable diet, 50% to 60% of the total heat energy needed by people in a day comes from carbohydrates. Compared with the big fish and meat in the dish, rice is much easier to digest, and rice also has the irreplaceable necessity of other nutrients. Staple foods are generally tasteless, in addition to the light aroma of rice. Why do we never get tired of eating rice all our lives, but eating big fish and meat for three days in a row will turn our stomach? This is because big fish and meat are heavy in taste and color, and heavy oil, if eaten too much, will cause great disgust and irritation to the stomach. Too much or too much intake of rich dishes will cause great burden to the stomach.

Eating vegetables with high protein, high fat and low fiber for a long time is extremely harmful to health. Some people think that eating more vegetables is not a bad thing, but vegetables are "eaten" by oil. Many vegetables are fried with too much cooking oil, and some vegetables are like soaking in oil. If you eat like this, you will easily get high blood pressure, cardiovascular disease and obesity.

Nutritionists also disapprove of the absolute view of "eat more and eat less vegetables". Advocate the scientific and reasonable collocation of staple food and non-staple food. Rice, vegetables, meat dishes and fruits, of course, the staple food should account for an absolute proportion. In addition, it depends on everyone's growth stage. Teenagers are growing their bodies and bones, and their activities are also large. The proportion of staple food and non-staple food has its age characteristics. However, the proportion of staple food and non-staple food for the elderly is different from that for teenagers.

Nowadays, there are more patients with gastrointestinal diseases than in the past, especially teenagers.