The purpose of dietary diversification is that the diet should be varied

Fresh vegetables and fruits are an important part of a balanced and healthy diet. Fruits and vegetables are important for vitamins, minerals, dietary fiber and phytochemicals**, and they are high in water and low in calories. A diet rich in vegetables and fruits plays an important role in maintaining good health, maintaining normal intestinal function, improving immunity, and reducing the risk of chronic diseases such as obesity, diabetes, and hypertension.

Adults should eat more than 1 kg of vegetables every day, more than 3 different varieties, of which dark vegetables should account for more than half in terms of quantity and variety. Dark vegetables are rich in antioxidants such as chlorophyll, lutein, lycopene, anthocyanins, and carotene. Common dark vegetables are greens, spinach, water spinach, broccoli, tomatoes, carrots, pumpkin, peppers, purple cabbage, etc.

Most vegetables are low in calories, and eating more will not make you fat.

It is recommended that adults eat more than half a catty of fruits and more than 3 different varieties every day. Most fruits have a sweet taste, the reason for the high moisture content, there are few calories, and eating too much will not make you fat. It is important to note that vegetables and fruits cannot be substituted for each other, because vegetables and fruits are two different types of food, and their nutritional value has its own characteristics.

It is recommended that adults eat about half a catty of cereals every day, but not only rice or wheat, it is recommended to eat more than 5 kinds of grains and other seed foods every day. The best way is to eat multigrain porridge or eight-treasure porridge, and cook red beans, black beans, mung beans, rice, barley and red dates together to eat six different foods at the same time, which is a more convenient way to diversify the diet.

Experts believe that everyone can only be qualified to eat 15 kinds of food a day, and only if they eat 22 kinds of food is considered good, which is completely consistent with what is mentioned in the "Emperor's Inner Canon".

It can allow the body to absorb nutrients comprehensively, and the body is healthier.

The Yellow Emperor said in the Neijing: Five grains are for nourishment, five animals are for benefit, five fruits are for help, and five vegetables are for filling.

The ancients have realized that the food needed by the human body is not a single food, and it must be eaten together with cereals, meat, fruits and vegetables in order to live a long and healthy life, which is conducive to the growth and development of the body.

Now nutritionists also believe that the diet should be both meat and vegetarian, and it is ideal to make a reasonable combination.

As for how to make a meal match, it is said on the Internet that a reasonable diet structure should be a ratio of vegetables, fruits, grains, legumes and meat to 5:2:1, that is, the optimal ratio of plant food to animal food is 7:1.

Therefore, it is best to diversify the usual diet, not too monotonous, only satisfy the taste, just eat what you like to eat, it is not advisable to not pay attention to nutrition, and it is not good for the body.

The human body is an extremely complex system, and the nutrients needed are balanced, not single, and the supply of a variety of substances is needed to ensure human health. Except for breast milk, there is no natural food that can provide all the nutrients that the human body needs, which requires us to diversify our daily food intake to meet the needs of the body's physiological activities. In other words, the most important thing to eat is to have a varied diet.

In ancient times, Chinese medical scientists have put forward the doctoral idea of "five grains for nourishment, five fruits for help, five animals for benefit, and five vegetables for filling", which is actually what we advocate now.

The ancients believed that the correct way to eat a diversified diet was to focus on plant foods, pay attention to the mixed food of grain and beans, rice and flour, and appropriately supplement it with a variety of animal foods including fatty meat.

It is also the same principle, it recommends that people eat as many foods as possible, from miscellaneous to wide, so that the body contains more substances and improves the nutritional guarantee rate. Of course, the "miscellaneous" mentioned here mainly refers to the variety of food, and a variety of foods can often play a role in correcting deviations and filling deficiencies in terms of nutrients and physiological functions, so that the body can always remain healthy.

Generally speaking, the foods we eat should include cereals (e.g. rice, rice noodles, noodles, oats, etc.), fresh fruits, vegetables, moderate amounts of low-fat dairy products, fish, lean meat, poultry, sugar and salt, etc. The nutrient content of various foods is different, some have more vitamins, some have more minerals, some are hot, some are cold, some are fine, and some are scum. Only by diversifying the intake can we obtain more comprehensive nutrition, and only a diversified diet is the primary guarantee of human health.

It should be noted that although there are many foods that should not be eaten too much (such as sugar, salt, etc.), it is absolutely important not to eat them, otherwise the body will be "dissatisfied", and long-term lack will even lead to various diseases.

Take picky eaters as an example, picky eaters tend to like to eat a certain type of food and sneer at the foods they don't like to eat, which can easily lead to a lack of certain nutrients in the body. For example, people who don't like to eat meat dishes are prone to lack of protein in their bodies; The preference for meat dishes can lead to excess calories and deficiencies in various vitamins and minerals.

In addition, we know that the vitamins and other nutrients needed by the human body are mainly vegetables, fruits and other foods. While fruits and vegetables contain nutrients such as vitamins, they are not a substitute for each other. Some people don't like to eat vegetables, thinking that it is enough to eat some fruits, so that they only get the nutrients in the fruits, and the nutrients that are not in the fruits cannot be obtained.

The same is true when it comes to other foods.

The diet should be extensive and rich, not picky eaters, should be a combination of meat and vegetables, thick and thin, only in this way, in order to maintain the balance of nutrition in the body, to prolong life. The dietary guidelines formulated by the Chinese Nutrition Society put forward eight principles, among which "food should be diverse" is listed as the first place. It can be seen that a wide intake of a variety of foods is the scientific way to maintain health.

Why is there an emphasis on a varied diet?

Because the diet is diversified, the nutrition can be balanced, and the minerals and trace elements required by the human body can be guaranteed.

Because everyone's tastes are different, coupled with the difference in regional culture, the diversity of food has been caused, not to mention that one side of the water and soil supports one side of the people.

In order to make the nutrition more balanced, if we only eat one food, then after a long time, we will get sick due to lack of various nutrients, and people need to eat various foods to achieve nutritional balance.

Because in this way, you can have a balanced nutrition, and let your body reach a healthy state, and you will not be a picky eater.

Because the nutrients of a single food are limited and cannot meet the needs of the human body, a variety of foods can provide a variety of nutrients, minerals and vitamins that the body needs.

Because the nutrients required by the human body are very diverse, the nutrients rich in a single food are relatively single, and they cannot provide the various nutrients that people need, so they will advocate dietary diversification.

Because a diverse diet will be more nutritious, and after a diversified diet, the taste and texture of food will be different. It doesn't feel greasy to eat, and it has the effect of regulating appetite.

Dietary diversity is determined by the regional environment, and the diet chosen by people in each region is the most suitable for them, and if the diet is not diversified, a large number of people may not survive.

In 2017, China's catering revenue reached one trillion yuan, a year-on-year increase, and the demand for catering consumption has developed in the direction of diversification and diversification. Due to the differences in regions, habits, tastes, etc., the taste of cuisine is becoming more and more diverse, and while Chinese formal food still occupies a strong dominant position, consumers are also increasing the demand for Western food, Japanese food, Korean food and other international food markets.

When consumers choose a restaurant, they are most concerned about the dining environment and the taste of the dishes. The food safety factor is ranked third, and the ** factor is only ranked fourth. "As consumer demand continues to escalate, people pay more attention to eating well, eating comfortably and eating happily.

The consumption structure of the "post-70s" consumer group is relatively single, and more than 90% of them have a soft spot for traditional Chinese food, and the "post-80s" and "post-90s" have gradually become a new force in catering consumption. According to Meituan Dianping, 20-year-olds and 35-year-olds contributed 74% of food and beverage orders. Their consumer needs are more personalized, diverse, and diversified.

In 2018, young people will continue to become the main consumer of food and beverages, and their attention to nutrition will continue to escalate. People are gradually realizing the importance of nutritional health and will try to prevent or control health problems such as obesity, diabetes, cholesterol, high blood pressure and other health problems through dietary routes. Consumers are increasingly paying attention to diets that are low in oil, salt and sugar.