" The authorities who insist that abstaining from carbohydrates is an unsustainable lifestyle once again typically do so from the perspective of lean people whose primary fuel happens to be carbohydrates and whose bodies can tolerate carbohydrates without accumulating excess fat. From their perspective, a program that requires living without carbohydrates appears doomed to fail. Why would anyone do it, if another way existed that allowed for the occasional consumption of cinnamon buns and pasta (in moderation, not too much)? But for many of us, there may be no other way. Lean folks aren’t like us. They don’t get fat when they eat carbohydrates; they may not hunger for them just by thinking about them. They have a choice to live with carbohydrates or not. We don’t. Not if we want to be lean and as healthy as we can be. "

― Gary Taubes , The Case for Keto: Rethinking Weight Control and the Science and Practice of Low-Carb/High-Fat Eating