The China Study examines the relationship between the consumption of animal products (including dairy) and chronic illnesses such as coronary heart disease, diabetes, breast cancer, prostate cancer, and bowel cancer.[3] The authors conclude that people who eat a whole-food, plant-based vegan diet avoiding all animal products, including 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 numerous diseases. They write that "eating foods that contain any cholesterol above 0 mg is unhealthy".[4]

The book recommends sunshine exposure or dietary supplements to maintain adequate levels of vitamin D, and supplements of vitamin B12 in case of complete avoidance of animal products.[5] It criticizes low-carb diets, such as the Atkins diet, which include restrictions on the percentage of calories derived from carbohydrates[6] The authors are critical of reductionist approaches to the study of nutrition, whereby certain nutrients are blamed for disease, as opposed to studying patterns of nutrition and the interactions between nutrients.[7]

https://en.wikipedia.org/wiki/The_China_Study