15 experts in refuting the “milk harmful theory”
Science and health education should respect the fact that
- Rejected “milk harmful theory”
The list of experts (by last name pronunciation order):
Chen Chunming China CDC consultant researcher
Chen Xiaoshu China Centre for Disease Control and Prevention researcher
Cheng Yiyong of Military Medical Sciences Fellow
Ge Yu, chairman of the Chinese Nutrition Society Research Fellow
Gujing Fan “Journal of Nutrition,” edited by researcher
Hygiene and Occupational Second Military Medical University
He Zhiqian professor of Zhongshan University School of Public Health
Jue-Sheng Li, Professor, Qingdao University Medical College
Liu Qipei Professor of Fudan University School of Public Health
Su Yi-Hong Sun Yat-sen Professor of Public Health
Yang Xiaoguang China Centre for Disease Control and Prevention researcher
Yang Yuexin China Centre for Disease Control and Prevention researcher
Zhai Feng-ying China Centre for Disease Control and Prevention researcher
Henan Province, Zhang Ding, MD, Director, Centre for Disease Control and Prevention
Zhao Ji Second Military Medical University
Recently, a PhD in his written works and popular science television and some areas in his speech to “completely overturn the traditional concepts of health” as the theme, multiple advocacy, “milk is the cow to eat, not eating,” ” milk and dairy products for the food allergy culprits, “” drink less milk and no calcium anti-calcium “,” To stay away from chronic diseases, please weaning as soon as possible “and other viewpoints.These claims caused a lot of viewers and readers of the doubt, also caused a nutrition, food science and preventive medicine, many experts have concerns.As a long-term research in these areas, teaching, disease prevention and control work of professionals, we agreed that this view of the lack of Dr. scientific basis, does not conform to national conditions, it is necessary to be clarified.
First, milk is a nutritious, easy digestion, healthy food
Milk is a food with high nutritional value.Mammals in the first few months of life milk alone can supply all the necessary nutrition physical development is the best example.The evidence of Dr. milk harmful to one of them too much casein, a protein “hard, rough, very difficult to digest.”However, a large number of studies have shown over the years at home and abroad, the amino acid composition of milk protein and the human body close to, but also has good absorption rate and utilization, in Nutrition and is recognized as high quality protein.In many nutrition experiments, casein protein often used as a standard or reference protein.Although smaller than its nutritional value of human milk, but better than rice, flour plant protein, and soy protein than meat and nutrition rates are high.In addition, milk contains almost all kinds of vitamins and minerals, also contains lactoferrin, immunoglobulins, growth factors such as a large number of physiologically active substances.
Countries around the world hundreds of millions of infants and children, in order to milk as the main food supplement, get a good development and health status, is very convincing example.Instead, a few years ago in Anhui Fuyang “Datouwawa” event, because the fake and shoddy food, “milk powder” in the low protein content, resulting in a young child nutrition, developmental abnormalities, severe, and death.Both positive and negative aspects of the fact that the milk of such food for the development of young children has an irreplaceable role.Europe, the United States, Japan and other residents of many countries, even in adulthood and even old age is still a lot of consumption of milk and its products, improving their nutritional status, a strong body to play a useful utility.
Second, to promote breast-feeding infants and young children does not exclude the beneficial effect of milk
It should be noted that nutritionists have always been special emphasis on breastfeeding.Because breast milk is the best infant food, only breast milk to the newborn and infants 6 months to provide the most comprehensive and most are reasonably necessary nutrients.However, for various reasons in the breast-feeding or breast milk can not be in short supply situation in infants 6 months after the need for additional complementary feeding and weaning of cases, rapid growth and development in children during the milk is undoubtedly the best choice one of the best food.Milk and human milk does in some nutrients content and ratio are different for infants born less than 6 months and a small baby, breast milk, certainly better than that; but the lack of breast milk that baby how do?Those growing up breast milk alone can not meet their nutritional needs, how to do a big baby?Therefore, food, nutrition, maternal and child health and other experts strongly advocated “breastfeeding” in the same time, with milk as the main raw material developed a variety of “formulas” to meet under different circumstances the nutritional needs of growing infants.
In fact, milk and human milk in nutrient composition although there are some differences, but the more important aspect is of great similarity.In contrast, rice, flour, beans, meat and other food and nutritional content of human milk even greater difference.Human growth and health depends on the rational combination of different food.If, because “milk is the cow to eat,” people do not eat.It follows that milk is a sheep to eat, fish cat food, food dishes before the plant is cultivated in the human food animals eat grass, are people can only rely on the mother’s milk for life to survive it?
Third, to increase milk consumption is to improve the nutritional status of Chinese residents an important measure
In discussing the issue of milk is harmful, must not leave the country in which the current level of economic development and the actual nutritional status of residents.Mainland China in 2002 launched a large-scale nutrition and health survey, the results showed that dietary levels of mainland residents have been greatly improved in recent years, while still facing malnutrition and the dual challenges of nutrition.For example, children under 5 years old 17.3% rate of growth retardation, or even one-third of poverty-stricken areas, mainly due to rural children’s food supplement is unreasonable, dairy and soy products is a common low problem.Milk and its products is not only rich in quality protein, and rich in lipids, vitamins and calcium and a variety of minerals is to improve the nutritional status of Chinese residents to reduce the rate of growth retardation is one important means.Should be especially clear is that the residents of milk consumption in China is still at a very low level, the average intake per person per year is only about 8 kg less than the world average of 93 kilograms per person per one-tenth of a year, far developing countries have not reached an average of 35 kilograms per person per year level.Therefore, the Chinese Nutrition Society in the “Dietary Guidelines” in particular emphasized that “things as milk, beans or their products”, hopes to increase milk intake, effectively improve the problem of inadequate intake of some nutrients, especially to improve residents of the nutritional status of protein and calcium.And the Dr. declared that “more than three years old, should give up milk intake” diet does not understand the actual situation of Chinese residents, does not conform to the basic nutrition and medical knowledge.
“Do not drink milk have decreased calcium calcium,” We think this argument is impossible from a “Doctor” of the mouth.Even the layman nutritional science, it can not make such a simple issue like the wrong answer.Excessive intake of protein may indeed affect the retention of calcium in the body.But our level of dietary protein in excess did not reach that level of Western residents.Some Americans will milk for water, up to 1000ml per day or more (calcium 1500mg), plus eating a lot of meat, its total daily protein intake of more than 120 grams; while the current daily protein intake of Chinese residents income of about 70 grams, daily calcium intake less than 400mg.We suggest that you moderate intake of dairy products, calcium-rich milk in China to supplement inadequate dietary calcium deficiencies, will not cause calcium loss.If you drink milk really cause “by calcium,” There are so many children at home and abroad often drink milk, so why the incidence of rickets has not increased but significantly lower?This argument on the research background and the reality do not do a comprehensive analysis of the abuse of scientific findings out of context is the performance of scientific ignorance.
As for the milk protein allergy caused problems only happen in very few people.Because the differences between individuals, some people on Vicia allergies, some people fish, shrimp, shellfish allergies, and some people milk, soy, peanuts, seaweed allergy.Food allergy is mainly a small number of people with the allergy, most commonly in the life of the first 1 to 2 years, most people allergic to gradually decrease after 3 years of age, only 1 to 2% of adults still food allergies.In contrast, more common in China residents of food allergies is fish and shellfish.No matter from which point of view, the minority should not be used as food allergies milk all the reasons for people fast.
Fourth, the milk not the cause of the increase in our population the main dietary factors of chronic diseases
As stated in the economy’s rapid development and changes in dietary patterns, our residents the incidence of certain chronic diseases appeared to increase.Among them, cancer, hypertension, diabetes, overweight and obesity and other diseases need to be solved rapidly growing to become a serious problem.
The reasons for the increase caused by many chronic diseases, such as environmental pollution, irrational dietary pattern, physical exercise to reduce smoking, psychological stress are all risk factors for these diseases.The diet, the major risk factors for China’s population is too high energy intake.According to a recent nutrition survey data, resulting in excessive energy intake of Chinese residents are mainly fat and meat food category.For example, urban and rural residents in Mainland China in 2002 dietary fat intake per person per day, respectively, 86 grams and 73 grams of fat was about 35%, has exceeded the WHO recommended limit of 30%; urban and rural residents per person per Japanese meat consumption categories, respectively, 104 grams and 69 grams, compared with an average increase of one third in 1992, and ranked number one in meat consumption is very high fat content of pork.In contrast, mainland residents per capita milk consumption is only 26 grams per day, energy metabolism in the human body can not have a huge impact.Therefore, the main dietary prevention of chronic disease control measures should be fat and meat consumption, milk unwarranted charges can not solve the fundamental problem, but misled the masses of food consumption.
In recent years, foreign medical journals published indeed some relationship between dairy and cancer research papers, but more research is reported beneficial effects of dairy products on health.In 2004 the United States, “Journal of Clinical Nutrition” papers reported that excessive intake of dairy products will increase women’s risk of ovarian cancer; the same year the “International Journal of Cancer,” also introduced the Harvard Medical School carried out the dietary lactose and ovarian cancer Relations, suggesting that high consumption of lactose may increase the incidence of ovarian cancer.Although these two papers published in the U.S., but notably in the “2005 Dietary Guidelines for Americans” in the nutrition of dairy products are still stressed the importance of: “Relationship between intake of dairy products to the overall diet quality, and many adequate intake of nutrients. adults and children should not worry about weight gain and avoid milk and dairy products. “The” Guide “by the U.S. nutrition, medicine, health sciences, the dozens of well-known experts to develop, but also by U.S. Department of Health and Human Services (HHS) and the Ministry of Agriculture (USDA) jointly with adequate scientific and authoritative.
On the one hand is the milk-induced risk of ovarian cancer research, on the other hand advocate a guide to drinking milk, in the end how to evaluate the merits and demerits of milk?The key is whether the level of population intake of “excessive.”"2005 Dietary Guidelines for Americans” over the proposed nine-year-old children and adults consume 700 ml per day of skim or low-fat milk or dairy products, indicating in their countries the increase in ovarian cancer among women “too much” more than the recommended amount of dairy products.As mentioned earlier, the mainland of milk consumption per person per day on average only 26 grams (less than 30 ml), and the United States more than 20 times the recommended amount of difference.In such a very low intake level of nutrition of our people without regard to the lack of problems to solve, but worry about milk, “excessive” due to breast cancer, it not entirely different, strange that!
Here we appeal to both popular science writers or the media, in the general population to the health of the public, should be careful to treat those “new medical discoveries.”Published in the journal each year at home and abroad of tens of thousands of medical research papers, but any research paper has its established research background and experimental conditions.We should treat those detailed analysis and careful study.Relations for the masses who go beyond common sense view of health, should be investigated and after listening to more views of scientists, and then make a more comprehensive coverage.10 million just to avoid the pursuit of “bright spots” and stunned the world and mislead the reader, and even the science into error.
5, health education should be based on scientific knowledge, not to unconventional and lip
China is currently undergoing an economic restructuring, the majority of residents in the way of life, including eating behavior is undergoing great change.At this critical time, society needs a large number of health education experts, advising the residents to form a good diet.But the words of Dr. so that we strongly feel: Health education must be based on scientific knowledge.If errors occur in the contents of education, then the form of the more vivid, more serious adverse consequences.Especially for some scientific knowledge, not lip service, free to “subversion”!For example, pasteurization to improve food quality, protection of human health, the great contribution of well-known.Not to negate the milk, said this approach “will be solidified after heating the formation of a hard protein casein. … … Difficult to digest, prone to cause allergies.”How: After heating the formation of egg custards, soya bean curd made of mineralization are protein coagulation phenomenon, are these production methods are harmful?In addition, the body of the dietary protein needs, Beijing and Taiwan scholars have attended the United Nations University (UNU) organized the study, collected data consistent.Light work of the adult daily dietary intake of approximately 70 grams of protein, while the heavy manual labor recipients will have about 85 grams.The Doctor In order to oppose the consumption of milk in the proposed “60-kilogram adult, 36 grams of protein a day is enough need.” If the protein requirements in accordance with his food intake, equivalent to our residents back to the natural disaster, National Physical Fitness How to ensure?Like this “new ideas” in the recent health education are also common.Space is limited, we can not point out at this 11.
We believe that this PhD in health education about most of the content is correct and desirable.For example, the stress consumption of fruits and vegetables to reduce the deep-fried food, to promote proper movement and pleasure mood, increase intake of whole grains, are at home and abroad in recent years, special attention to promotion of health education content.However, how to deal with the issue of milk, he’s view not sufficient scientific evidence, and many arguments against common sense, so that we can not agree.We earnestly hope that this PhD in his lectures or writings, as far as possible to avoid a simple guess or assume the denial of a recognized scientific knowledge, but should respect science, familiar with science, information science.On the contrary, some of irresponsible propaganda fingertips, insufficient evidence, or even of what science and common sense, not only not conducive to public health, but also misleading the public.The resulting negative impact, will be questioned and condemned.
In order to more fully explain our point of view, like the “Dietary Guidelines” Introduction to the basic, after reaching a consensus.
First, food variety, cereal-based
Second, eat more vegetables, fruit and potato
Third, eat dairy products, beans or their products
Fourth, always eat proper fish, poultry, eggs, lean meat, low fat meat and Hun You
5, food intake and physical activity to balance and maintain appropriate body weight
6, eat light meals salt
7, such as alcohol consumption should be limited
8, eating clean, not bad food
