alt Hacker News>That is what I came to believe as well. If sugar alone was the problem, vegans would be fat. If fat alone was the problem, ketogenic and carnivore diets wouldn't help people lose weight.
This logic is faulty because both vegans and keto/carnivore people are selected for adherence to diets. If you can stick to either dietary restrictions, you can probably also not pig out on pop tarts or whatever.
That is incorrect, actually. I find it relatively easy to adhere to keto diet. But the moment I try to introduce more "diverse" foods, I gain weight.
Because processed food diet is IMPOSSIBLE to adhere to without gaining weight. Caloric restriction simply doesn't work - your body wants nutrients, not just calories. Which is to say, your willpower will fail sooner or later, unless you find a way of satisfying nutritional needs without excess caloric intake.