Mine would be "Why we get fat and what to do about it" by Gary Taubes. Not only it changed my life (overweight to my healthiest ever), it also led me to challenge everything about our dietary dogmas. I further read "Art and Science of Low Carbohydrate Living", watched a lot of lectures and saw studies which question our current notions. Overall I am more skeptical of studies which have links to those benefiting from it commercially.
This is the book that switched on the light for me. It’s no exaggeration to say that it put me on a path to the best levels of health and fitness I have ever known. I am 56 and feel like I’m in the prime of life.
