Great article, just book marked it. Definitely appeals to people “like me” who align philosophically with HN types.
My biggest issue with it, and all diet advice that wants to “give it to you straight, it’s all about calories” is this — YES in order to lose weight you HAVE to burn more calories than you consume, there is no question about it, it’s tautological. But it’s kind of like saying, “in order to stay sober every night, you have to drink alcohol slower than your liver can process.” It’s true...but it doesn’t really answer the question you should be asking, which is “why are you an alcoholic?” The answer to that question is more complicated, but it’s the only question that matters.
Back to diet, when it comes to being lean — why were the vast majority of Americans lean in the 1950s back when almost no one did any formal exercise, especially women, and hardly anyone was counting macros, calorie counting, etc? They just naturally ate about as many calories as their body burned off. Their bodies had a mechanism to tell them to stop eating when they were full. So what’s the difference between people and food 60 years ago and people and food today? No other mammal on earth has gotten so obese as a percentage of the population as humans have. The answer to that question, I’d argue, is the only one that matters!
I think this is why the Paleo diet has taken off so well, because frankly we shouldn’t have to count calories, macros, etc to stay lean — yes, those methods work, but we should be able to simply rely on the signals our bodies are sending us, every other lesser mammal does this, and humans did it just fine 60 years ago.
TL;DR Yes, it’s all about eating fewer calories, BUT how you eat fewer calories has a big effect on whether you can sustain it long term and feel satiated.