The China Study: The Most Comprehensive Study of Nutrition Ever Conducted and the Startling Implications for Diet, Weight Loss and Long-term Health, by T. Colin Campbell, Ph.D., and Thomas M. Campbell II. Benbella Books, 2006.
This is the most convincing and thorough exposition of the health reasons to go vegan, period. The author’s reputation as a researcher is as distinguished as one could hope for; the reader can have absolute confidence that what is being asserted is based on the best science we can get. The evidence that a plant-based diet minimizes risk of, and even reverses, so many chronic debilitating diseases is now sufficiently strong that rational doubt is virtually impossible. The section toward the end about why the American public is not hearing this message–including physician ignorance of nutrition and the deliberately created confusion, denial and pressure from the food and drug industries–is equally brilliant.
Read this, and get it into as many other hands as possible.