How Not to Die by Dr. Michael Greger argues that a whole-food, plant-based diet can prevent, treat, and reverse top causes of premature death, such as heart disease, diabetes, and cancer. Moreover, of the dozens of diseases he discussed, he argues—citing study after study—that virtually all of them can be reversed or treated successfully by consuming a whole food, plant-based diet. The book emphasizes maximizing intake of vegetables, fruits, legumes, nuts, and seeds while minimizing meat, dairy, and processed foods. Beyond this book (and several others which he as written), Dr. Greger runs the nutritionfacts.org website that is full of videos that summarize countless scientific studies on nearly any medical condition imaginable.
Proteinaholic by Dr. Garth Davis argues that the modern obsession with high protein consumption, especially from animal sources, drives obesity, diabetes, and chronic disease. Dr. Davis argues that we have been misled by industrial marketing, media, and diet trends (like Atkins or Paleo) to believe we need massive amounts of protein, which is not supported by science. As a bariatric surgeon, Dr. Davis has worked with thousands of obese patients, and a common theme among them was the excessive intake after protein from animal sources. Davis advocates a whole-food, plant-based diet, arguing that adequate protein is easy to obtain from plants and that excessive intake is harmful. This is an excellent and entertaining read.