4hw.com.cn: I believe you've heard about dietary nutrition, but you may not know what it is. In fact, the so-called dietary nutrition is that we take all the nutrients from the food we eat to help the body digest and absorb them. If the nutrition is not enough, then the body will be unhealthy. It brings some unimaginable symptoms to the body, so what is diet What about nutrition! How to let the dietary nutrition inhale into our body to supplement our body. Let's have a look~
Nutrition refers to the behavior that the human body absorbs appropriate beneficial substances from the outside to seek for health, which is a comprehensive process of human body's intake and utilization of food, and the whole process of intake, digestion, absorption and excretion of nutrients in food.
Nutrition should be understood as the act of nourishing or being nourished, which means seeking to nourish the body. There are also the following explanations for the meaning of nutrition words: the human body absorbs nutrients from food to support the body; the human body absorbs substances needed from the outside to maintain its growth, development and other life activities; the human body absorbs nutrients needed from the outside to maintain its growth; the human body absorbs nutrients to maintain its life process.
In short, the whole biological process of human body's intake and utilization of food nutrients in order to maintain growth, development, metabolism, repair and other life activities is called nutrition. The study of this biological process and its related factors is called nutrition.
The branch of nutrition biology. It can be seen that the meaning of nutrition does not refer to substance, it is not a material noun, it is not a synonym for nutrients. At present, many people don't understand the meaning of nutrition words correctly and use them inappropriately, such as sufficient nutrition, rich nutrition, high nutrition, etc. we should correctly call it "enough nutrition, rich nutrition, high nutritional value".
In addition, there are also some people who use the phrase of nutrition and health, which is also wrong, because there is no health problem in nutrition. Because there are a lot of health problems in food, we can 't use them
In order to maintain normal life activities and engage in labor, the human body must constantly ingest food and drinking water every day. Food and drinking water contain all kinds of organic and inorganic substances necessary for the human body. This kind of organic and inorganic substances beneficial to the body are called nutrients. Therefore, the "food for the people" food actually refers to the nutrients in the food. There are many kinds of nutrients in food, up to dozens of them. According to their chemical properties, they can be divided into six categories: protein, carbohydrate, mineral (mineral salt or inorganic salt), vitamin and water. Nowadays, some people call the dietary fiber that can't be digested and absorbed in carbohydrate the seventh nutrient.
The so-called dietary nutrients are the fruits, vegetables, fish and eggs that we eat every day. According to the research, it is not that the more expensive we eat, the higher the nutritional value. In fact, many ordinary vegetables and ordinary food can supplement a lot of nutrients.