The book titled Chinese study published in 2004 in the USA. Its authors are T. Colin Campbell, professor of nutritional biochemistry at Cornell University, and his son, physicist Thomas M. Campbell. The book examines the relationship between diet and chronic lifestyle diseases such as cancer, diabetes, cardiovascular disease, obesity, autoimmune disease, osteoporosis and degenerative brain diseases.
The Chinese title is taken from a study of 20-year international project of the Chinese Academy of Preventive Medicine, Cornell University and Oxford University, which began in 1983. The object of the project was to investigate the association between chronic diseases and dietary habits in 65 Chinese provinces (6500 research subjects, ie 100 from each district).
The strength of the collected data was the fact that the population of each region were characterized by different dietary habits (eg some regions can be labeled as "vegetarian", other than "carnivorous"). Controversy studies The book will be released immediately became a bestseller, in January 2011, has sold 500,000 units, making the U.S. ranked among the best-selling books on nutrition. According to the conclusions in the book were from a health point of view the most endangered Chinese regions with a high intake of animal products and have been the healthiest regions with a high proportion of plant foods in the diet. The public - especially vegetarian community - this book and its recommendations adopted with enthusiasm, without further examination.
China study datasetWe have found few enthusiasts with a statistical background who can analyze data from the studies themselves. The data are publicly available, eg. at Oxford University , where can buy in printed form - the book "Diet, life-style, and mortality in China: A study of the characteristics of 65 Chinese counties [Chen J] . "The collected data based on the analysis of relevant statistical procedures show different correlations (context) than those in his book describes Professor Campbell.
Although the results confirm the positive health benefits of vegetables, but refuted claims about the harmful effects of animal food. Probably the most detailed statistical analysis with detailed comments created a 24 year old student Denise Minger. Her analysis of the publication within a few days received thousands of fans.
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