Re: Is is OK to eat a little bit on the fast?

To survive fast you should start gradually, reducing the amount of food, type of food, number of days .So when you go on fast your stomach shrinked a bit already and doesn't scream at you. Your body thinks you are starving and switches on all possible signales.
The other thing to look at. If you are a religious person than you know every religion has fasting at least once a year and there is health consideration involved in this, not just some kind of punishment. It's easier after all to do it with positive thoughts.