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Recently, I brushed up on an interesting video of a professor, who is Professor Zheng Qiang of the Department of Chemistry of Zhejiang University.
Professor Zheng Qiang is not only knowledgeable and professional, but also always outspoken, funny and humorous, and deeply liked by students.
In the video of Professor Zheng Qiang's speech, you can often see the audience laughing and increasing their knowledge in laughter.
However, while watching his speech, I also found that many of his views were very different from mainstream nutrition.
For example, he recommends eating more meat and opposes the idea that eating meat is three high.
He does not simply start from personal experience, but from a professional chemical and biological point of view, and explains it to everyone in simple and humorous language.
Next, I will select the part of his speech about nutrition and introduce it to you.
The reason for the three highs is not eating meat, but malnutrition
Many people's reasons against eating meat are three highs and bowel cancer.
Because blood pressure, blood sugar, blood lipids are indeed high in these decades, and eating more and more meat.
It feels as if the standard of living has improved, eating meat and eating more, three highs, cardiovascular and cerebrovascular diseases, stroke will come, it seems that the logic is universal.
However, this statement is too old, let's see what Professor Zheng said.
Personal experience, eating more meat body is very good
Professor Zheng Qiang talked about the example of his wife's postpartum bed, the bed companion process is very hard, in order to take care of the wife and children, has been sleep deprived, and then the school physical examination, found that he was healthier than before.
The doctor of the physical examination was also surprised why a person who accompanied him in the hospital was actually healthier.
The reason is very simple, in the process of accompanying the bed in the hospital, in order to supplement the body of the mother, the family sent a lot of stewed soup, and the chicken in the stewed soup was given to Professor Zheng to eat.
Of course, this is just a story, and there is his scientific truth behind it.
Three highs are a marker of digestive enzyme transitions
Professor Zheng Qiang has a very breakthrough point of view, he believes that the three highs are a sign of the transformation of digestive enzymes.
First of all, I would like to state that three highs is not a good thing, and we must find ways to reduce the incidence of three highs.
I'm against going through a low-fat diet, not letting eat meat, lowering three highs.
In fact, the three-high incidence rate has nothing to do with eating meat, which has been reiterated many times.
Although Professor Zheng Qiang did not prove that the three highs had nothing to do with eating meat, the direction of his research did not lie in this. He believes that even if there is a three-high risk, he must eat meat.
Of course, this statement is very subversive, and the reason he gave is that eating meat will transform the digestive enzymes of the Chinese people, and the most obvious feature is that the acceptance of meat is getting higher and higher.
For example, the elders of the family do not like to eat meat, love to eat noodle porridge, in fact, not only because of frugality, some people really can't eat, even smell the smell of meat.
The older generation is a hard day, before this the Chinese people are also based on a plant diet, eating meat is really a luxury, so digestive enzymes are more suitable for rice noodles, not for meat.
Long-term vegetarians should have a deep understanding that long-term hunger and vegetarianism can lead to indigestible meat, and eating greasy food at first may cause vomiting up and down diarrhea. (Skinny Dragon suggested reading this Zhang Wenhong: "Drink less porridge and eat more meat", but I can't digest meat, what should I do?) ）
Eating meat allows the human body to evolve continuously
This view may seem subversive at first glance, but it makes sense from a genetic point of view, such as the transformation of digestive enzymes is also an evolution, because people will choose foods with higher nutrient density instead.
The concept of nutrient density was mentioned in the previous article, the higher the nutrient content per unit weight of food, the better it is for health, and the nutrient density of fish, meat, eggs and so on is very high.
Long-term eating habits may alter a person's genes.
According to GLOBOCAN released by the International Agency for Research on Cancer, the mortality rate of rectal cancer in Western Europe is much higher than that of Chinese.
The explanation given by Professor Zheng is that the rectum of Western Europeans is shorter than that of Chinese, in fact, the rectum of Westerners is generally about 12cm, while the length of the rectum of Chinese people is generally more than 12cm.
This is caused by long-term dietary differences, because eating foods with low nutrient density such as rice noodles for a long time, the rectum evolves longer to absorb as much nutrients as possible.
Why eating meat does not lead to three highs
Professor Zheng said: I would rather risk three highs than eat meat.
Slender Dragon has stressed many times in many articles before that diabetes, cardiovascular and cerebrovascular diseases and hypertension are related to insulin resistance, and to be precise, they are more related to sugar and carbs. Related reading: 50 years ago, this sugar fat war, after his fiasco, hundreds of millions of people paid for their lives...
The main components of meat are protein and fat, and many studies have shown that reducing carbs, a high-protein or high-fat diet can all reduce three highs.
High-quality fats, especially omega-3 fatty acids, can improve diabetes and cardiovascular and cerebrovascular diseases. Related reading: Studies have found that eating more of this oil can live for 5 more years...
The benefits of eating meat are that vegetarian diet is irreplaceable, and animal proteins are high in nutrients such as vitamin B12, vitamin D, omega-3 fatty acid DHA, heme iron, and zinc, which are few or no nutrients.
Sweat steaming is not as good as being cold
In Professor Zheng Qiang's speech, another subversive point of view is that he opposes sweat steaming because the temperature is not good.
High temperatures are not conducive to male fertility
On the whole, being cold is better than being heated, and there is no particular harm in being heated, but frequent and excessive temperatures can affect male fertility.
A review study comparing several experiments found that multiple experiments demonstrated that male fertility depends on temperature and that occupational heat is an important risk factor for male infertility.
Ironically, the older generation, who attaches great importance to health, recommends that you soak your feet, take a hot bath, or even sweat steam, thinking that sweating more is good, in fact, there may be risks.
Being cold is good for the body
The benefits of cold baths and winter swimming are really tireless to say, because it is really too simple and beneficial.
Cold temperatures activate brown fat, which is the "traitor" in fat that can help with weight loss.
Cold exposure at a certain low temperature for a period of time can turn the white fat of the fat into brown fat, and the trembling stimulates the secretion of iris and can also promote fat burning.
Relatively low temperatures are also good for sleep, and studies have found that people with insomnia are unable to regulate their body temperature, resulting in difficulty falling asleep.
The optimal room temperature for human sleep should be between 15.5 and 19 degrees Celsius for optimal sleep.
Cold can also relieve inflammation, and its greatest benefit to the human body should be the anti-aging and the impact on lifespan.
Related reading: Ollie to uncle: 6 secrets of winter swimming, people who learn to benefit for life...
Iron pot stir-frying can not supplement iron, it is better to eat meat
In his speech, Professor Zheng Qiang mentioned a very famous thing in Hangzhou: due to the misleading of pseudoscience, parents had bought iron pots out of stock.
The reason is that the newspaper said that iron pots were used to stir-fry vegetables to supplement iron, and the parents of high school students used iron pots to stir-fry vegetables, and they used a lot of bad ones.
Why don't you supplement iron in an iron pot?
In fact, many IQ taxes, once popular for the same reason, take advantage of people's half-knowledge of nutrition.
Everyone knows that trace elements and vitamins are good for the body, but often neglect to absorb and dose.
The iron pot is a solid compound of iron, the human body can not digest, even if there is free iron, it is also the form of trivalent iron, and the human body can only absorb divalent iron.
To really supplement iron, you should eat more foods containing iron, such as animal blood, liver, red meat, fish, etc.
Even if you don't like to eat these iron-rich foods, you can also supplement dietary supplements (under the guidance of a doctor), how to calculate it is not an iron pot stir-fry!
Key Skinny Dragon said
Of course, I don't agree with all of Professor Cheng's views, such as drinking soup and eating meat mentioned earlier.
He believes that there is very little nutrition in the soup, in fact, there is high-quality fat in the soup, and the milky white of bone broth, fish soup and chicken soup is a symbol of high-quality fat, so the soup is still nutritious. Related reading Bone Broth does not supplement calcium, it is also 10,000 times healthier than eating calcium tablets...
As for why the tradition of giving women soup, this is the background of the times.
In the past, the conditions were not good, even if the mother could eat meat at once? After all, the stew can be drunk for a long time.
It is understandable that the previous generation did not eat meat, after all, there are reasons for digestion, but how can young people refuse to eat meat?
There are many ways to denigrate meat, the three highs, antibiotics, hormones, bowel cancer, etc., are all pseudoscience.
Health problems are caused by processed foods, too many grains and sugar, not meat.