I recently read How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reverse Disease by Michael Greger and Gene Stone (2015).
The authors identify the top 15 killers of Americans and present a plethora of research in response to each that provides guidance to us on how to best interdict those potential maladies.
A chapter is dedicated to each of the killers. Here they are, in order of their human devastation: Heart disease, Lung diseases, Brain diseases, Digestive cancers, Infections, Diabetes, High blood pressure, Liver diseases, Blood cancers, Kidney disease, Breast cancer, Suicidal depression, Prostate cancer, Parkinson's disease, and Iatrogenic causes (death caused by physicians).
The authors also detail, with substantial research support, Dr. Greger's Daily Dozen, the foods they believe, if eaten consistently, will prevent and even reverse those killing diseases. The Dozen: Beans, Berries, Other fruits, Cruciferous vegetables, Flaxseeds, Nuts and seeds, Herbs and spices, Whole grains, Beverages, Exercise.
Both in this book, and at his website - NutritionFacts.Org - Dr. Greger presents the findings of study after study after study (not just a few) to support his underlying conclusion - that a whole-food, plant-based diet is the surest pathway to optimal health.
Read it only if you want to be a healthier you.