The golden rule of diets is if you can't do something sustainably, you probably shouldn't be doing it at all. When we push to these extremes, black and white thinking, right, the people who lose the most weight and keep it off are not going to achieve their goals. There was another study in the journal obesity where they told people for one day only do not eat certain foods. And then that's what happened? They ate 133% more calories than before. It's like a meme: 'You had one job, don't touch any of this'