The China Study (book)

The China Study (book)

The China Study (2005) is a book by T. Colin Campbell, Jacob Gould Schurman Professor Emeritus of Nutritional Biochemistry at Cornell University, and his son Thomas M. Campbell II, a physician. It examines the relationship between the consumption of animal products and a variety of chronic illnesses, such as coronary heart disease, diabetes, and cancers of the breast, prostate and bowel. The book had sold 750,000 copies as of January 2013. It is one of America's best-selling books about nutrition.

The China Study of the title is taken from the China-Cornell-Oxford Project, a 20-year study that began in 1983 and was conducted jointly by the Chinese Academy of Preventive Medicine, Cornell University, and the University of Oxford. T. Colin Campbell was one of the directors of the project, described by The New York Times in 1990 as "the Grand Prix of epidemiology".

The study examined mortality rates from 48 forms of cancer and other chronic diseases from 1973 to 75 in 65 counties in China, and correlated them with 1983–84 dietary surveys and bloodwork from 6,500 people, 100 from each county. It concluded that counties with a high consumption of animal-based foods in 1983–84 were more likely to have had higher death rates from "Western" diseases as of 1973–75, while the opposite was true for counties that ate more plant foods in 1983–84. The study was conducted in those counties because they had genetically similar populations that tended, over generations, to live in the same way in the same place, and eat diets specific to those regions.

The authors conclude that people who eat a plant-based/vegan diet—avoiding animal products such as beef, pork, poultry, fish, eggs, cheese, and milk, and reducing their intake of processed foods and refined carbohydrates—will escape, reduce or reverse the development of chronic diseases. They also recommend adequate amounts of sunshine to maintain sufficient levels of vitamin D, and supplements of vitamin B12 in case of complete avoidance of animal products. They criticize low-carb diets, such as the Atkins diet, which include restrictions on the percentage of calories derived from complex carbohydrates.