My faery formulae assume that you are not stupid!! YOU WILL DIE, if you don't eat or drink!
your body is quite smart, it will force you to do what it needs eventually. good luck with that!
too cheeky? here is another hint! when you 'choose' a glass of water, and it tastes amazing to you, and you feel the nourishing rush through your being, then your probably intune with your body. the intent is that in time you will feed the body, and will not 'eat' at all!