Yeah, a lot of this isn't wrong. I don't read this as fatlogic. I read this as someone who already largely "gets" nutrition getting obsessively pedantic about the science.  They may even be projecting their own approach to food onto landwhales. E.g. the author is warning other fit people not to obsess down to the calorie and accept there's a margin of error. Fatties are going to read this and decide it's saying that we have no idea how many calories are REALLY in pizza, so not eating the whole thing is, you know, an obsessive approach that will totally make you anorexic. You know how fat people are super prone to becoming anorexic, right?