This was a big thing with Tim Ferris when he was making an argument for "cheat days". Personally, I also found cheat days to be effective when on a restrictive

This was a big thing with Tim Ferris when he was making an argument for "cheat days". Personally, I also found cheat days to be effective when on a restrictive diet. I think he ended up actually weighing his poop to prove the point. I did notice that I couldn't breakthrough some key weight loss levels without both cheat days and intermittent fasting, with the cheat days seeming counter-intuitive to me.