Speaking from a somewhat ignorant viewpoint, i think you must consider what happens if your body cant cope with the stress. If you are able to eat just before training, because the sun has gone down, then thats great. While food will replenish your strength, water will probably be an even bigger issue. Have you considered what happens IF you pass out due to dehydration, and they will have to force liquid down your throat? How does your religion feel on that? Ofcourse, if you really passed out, maybe your fellows would simply take care of you until an ambulance comes and they will give you an IV drop - how is that?
I know that you are fasting now (or are you done at this date?), but im quite curious on the questions raised above anyways
