First of all, we all know that the three major nutrients in the human body are carbohydrates, protein and fat, and what we call "staple food" refers to foods with carbohydrates as the main body, that is, foods rich in starch, such as rice, wheat, oats and other grains that we often eat, as well as processed foods such as biscuits, bread, puffed food, various beans and potatoes.
Nowadays, many western books advocate the diet of the Stone Age, that is, cereal with meat, fish, fruits and vegetables as the main food sources and rich in carbohydrates. They think this diet can prolong life.
In view of this view, the average life span of ancient humans was very short, and their diet could not predict the situation after old age. So far, no study has confirmed that a low-carbohydrate diet can prolong life more than a staple food diet.
Moreover, after investigating the long-lived elderly people in various parts of China, it is found that they usually rely mainly on food and vegetables, supplemented by a small amount of meat, and almost never find that they have a diet habit of not eating staple foods such as starch. On the topic of losing weight without staple food, the research to prove the value of losing weight without staple food is a short-term study of 3-6 months. More than one year or even two years of long-term research has proved that in the long run, a diet without staple food is not better than a diet with staple food.
So, can you lose weight without eating staple food?
For this question, the affirmative answer is that not eating staple food can really lose weight, and there is a clear scientific basis. Among the three nutrients in our body, carbohydrates are the main nutrients used to provide energy. After not eating staple food, the burden of providing energy for the body is handed over to fat and protein. Moreover, a low-carbohydrate diet can't completely decompose fat. In the process of metabolism, "ketone body" will be produced, which is a substance containing a lot of energy, and because ketone body will acidify blood, our body will try to excrete it as soon as possible. In this way, a large amount of fat is decomposed and then excreted with energy. The effect of losing weight is naturally immediate and looks very beautiful.
However, since there is such a good way to lose weight, and it has been popular in Europe and America several times since the 1960s and 1970s, why is the obesity rate in Europe and America still high?
Analyze from several angles:
First, many people will suffer from physical fatigue, poor complexion and poor memory after not eating staple food, which is precisely due to the increased metabolism of fat and protein. Ketoacids produced by lipolysis need a lot of water to help excrete in time. protein's metabolism will produce urea, which will add a lot of burden to the liver and kidneys, so people with weak metabolic ability or people with liver and renal insufficiency will have the situation just mentioned.
Second, many people eat meat instead of traditional staple food, but in 20 16, the World Health Organization (WHO) listed red meat and processed meat, including sausages, ham, bacon and bacon, as a carcinogen. The Dietary Guide for China Residents recommends that the daily intake of red meat should be 40-75g, that is, about one or two grams, so it is not advisable to eat more.
Third, because of good operation, many female friends will choose not to eat staple food to lose weight. However, after a while, many people will be in a bad mood, depressed and grumpy. This is mainly because after not eating staple food, they lack the sources of blood sugar and B vitamins, and their bodies lack nutrition.
In addition, it is not uncommon for women with irregular menstruation, hair loss and loose skin to adopt this weight loss method. The specific reason is that meat, fish and fruits and vegetables are staple foods, which require higher gastrointestinal function, and people with weak digestive ability will naturally suffer from malnutrition. Fourth, although people who advocate a low-carbohydrate diet will emphasize eating more vegetables, in fact, it is almost impossible to supply a variety of dietary fiber only by vegetables without eating cereals, beans and potatoes.
Finally, suggestions for healthy eating are provided: in daily diet, the staple food should be eaten in moderation, but it is a very good answer to choose the staple food with slow digestion and high dietary fiber, such as oats, buckwheat, black rice, red beans, kidney beans, dried peas and other miscellaneous grains, combined with a large number of vegetables and a small amount of fish eggs and milk.
The above is the viewpoint of "eating staple food" for your reference.