Earlier quoted context omitted.
From the article: > From a public health perspective [restricting calories] would be impractical for many and dangerous for some. Regardless of what's the most optimal solution it's very helpful to have the option when this isn't an easy/practical option. And having tried to cut out sugars and processed foods in my own life, it was certainly not easy and required a significant monetary and time investment to cook my…
For whom would calorie restriction be dangerous? I don't get the time and monetary cost either. You can precook your meals for a whole week on Sunday night, as long as you don't mind a little repetition.
It might be quite hard to consume a sufficient amount of certain nutrients like Calcium on caloric restricted diet as well.