At the dinner table, many people often say, "Eat less and eat more vegetables. Rice has no nutrition, but nutrition is in vegetables. " There are also some women who pay too much attention to their figure and regard it as a "wise saying" to lose weight.
On the surface, this seems reasonable. However, from the perspective of scientific nutrition, if this continues for a long time, it will be extremely unfavorable to health.
The main components of rice and pasta are carbohydrates, which are relatively economical and can be directly converted into calorie nutrition. We in China have regarded rice and pasta as indispensable foods since ancient times. It is not easy for one or two generations to change a nation's dietary habits and nutrition absorption laws.
We know that carbohydrates are the main "basic raw materials" needed by our bodies. From the point of view of gastroenterology, in a reasonable diet, 50% to 60% of the total heat energy needed by people every day comes from carbohydrates. Compared with the big fish and big meat in the dish, rice is much easier to digest, and it has other irreplaceable functions of nutrients. The staple food is generally tasteless, except for the faint aroma of rice itself.
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 make us sick? This is because big fish and big meat are heavy in taste, color and oil. If you eat too much, your stomach will have great disgust and irritation. Too much or too much intake of rich dishes will cause a great burden on the stomach.
Eating vegetables with high protein, high fat and low fiber for a long time is very 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 just 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" and advocate the scientific and reasonable collocation of staple food and non-staple food. Rice, vegetables, meat and fruits, of course, the staple food should account for an absolute proportion. In addition, it depends on everyone's growth stage. Teenagers are in the stage of long body and long 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 of teenagers.
Nowadays, the number of patients with gastrointestinal diseases is increasing, especially the prevalence rate of teenagers tends to be younger, which is related to the blind "eating" of many only children at home.
Losing weight is a fatal mistake. Dieting makes you hungry and fat.
When summer comes, many people feel that they have no appetite and are too lazy to cook. However, nutrition experts point out that casual diet and monotonous food types are the important reasons that cause people's unbalanced nutrition and affect their physique. No matter how hot it is, it is still the weather that "eats". In this issue, experts are invited to interpret the common misunderstandings in summer nutrition and health care.
Misunderstanding just happened to lose weight in summer.
Through forced slimming in summer, the weight lost by the human body is mainly water. In addition, many people have no appetite after summer. When they see delicious dishes after a few hungry meals, their bodies will have an instinctive demand for nutrition, but they can't help eating and drinking. Overeating can not only help to lose weight, but also do harm to health and easily induce digestive tract diseases. Countermeasures:
Human intake must be nutritious, and the diet should be balanced in summer, so as to ensure the timely and quantitative intake of three meals a day. If you are too lazy to cook by yourself and go out to eat, you may wish to take in the necessary energy through dietary supplements. Among them, macro nutrients include protein powder, fish oil and so on. Micronutrients include vitamins and minerals, and carbohydrates include maltodextrin. These dietary supplements can be supplemented appropriately according to economic income, disease situation and diet plan.
We should also pay attention to improving cooking methods. You can buy some semi-finished raw materials in the market, or soak them in water, which is simple and light to prevent the loss of nutrients. However, it should be noted that beans, especially lentils and sword beans, must be cooked until they are ten ripe before they can be eaten, otherwise they may lead to food poisoning.
The meat chosen by the elderly and children should be digestible: muscle fibers such as "legless" (aquatic products) and "two legs" (chicken) are thinner and easier to chew and absorb. In addition, don't blindly emphasize eating "white meat" instead of "red meat", because there are still many people with iron deficiency anemia. Lean meat contains a lot of hemoglobin, which can slow down the symptoms of anemia.
3. Experts pointed out two misunderstandings of slimming with fruits.
Take fruit as "dry food" and eat it badly.
Xiaohong, a media specialist who works in a travel agency, is determined to lose weight. A while ago, she seldom ate staple food and stewed a lot of fruit every day to satisfy her hunger. When she was alone at home on the weekend, she went to the supermarket and bought a cantaloupe, half a watermelon, half a papaya, three peaches and a pitaya. She ate fruit while watching TV, with an ice cream in the middle. Before she could destroy the cantaloupe, she began to go to the toilet frequently, but she ate her stomach badly.
Expert comment: Excessive juice, beware of fructose urine.
Li Xianjun, deputy director of China Green Food Development Center and China Green Organic Food Certification Center, said: Because the fruit is too cold, it is easy to have diarrhea if you eat too much. Besides, there is no energy such as starch and protein. Eating too much fruit will increase the blood sugar concentration, and the brain will constantly send out the wrong message that it is not full. High blood sugar will stay in the stomach for a long time and do great harm to the stomach. High blood sugar can also cause diseases such as fructose urine (symptoms are fidgeting and dizziness, and high blood sugar can easily lead to adult diabetes), and children who love to drink juice will get this disease. It is recommended to know your physical condition correctly before eating fruits and vegetables. People with poor spleen and stomach are not suitable for eating cold food.