"The sooner you can adjust your mental view to treating food as nothing more than fuel, the better off you'll be;" I am like this. Trust me, it is not that enjoyable. There are two major downside: 1. 90% of all food tastes meh. I seldom go a day without having eaten something I truly enjoyed. 2. You start eating too little, because you feel you haven't exactly run out of fuel just yet. Two can be particularly dangerous, at times I have almost fainted because of it. I truly recommend against training yourself this way.