The Hidden Truths about Calories 
It's crazy to me that 'counting calories' is something people routinely take for granted. It is a uniquely human trait. No other animal in this world has a need to do this. Humans up until a hundred years ago (or so) had no need to do it. What the hell has happened?My opinion - food processing and the agricultural revolution. A metabolic derangement caused by overly processed agricultural products.