The book is the first one published exclusively on the field of nutritional epidemiology of breast cancer. It summarizes the currently existing knowledge, with an updated and comprehensive international bibliography ( 1.000 references). The authors also performed a review on the epidemiological studies on nutrition and breast cancer carried out in Uruguay between 1994 and 2011, which allowed exploring and identifying the main risk and protective factors for the disease in this high-risk country. Epidemiologists, Nutritionists, Public Health managers and breast specialists -from the prevention to the treatment fields - will find in this book a unique source of technical information, which will contribute in expanding their knowledge and view of the disease.