And if you look at it from another perspective.

Adam and Eve supposedly did EAT an apple. It was never said whether or not they ate before that, but maybe eating is one of the sins. Maybe when we started eating God said "your evil" and took away or everlasting. Just think...one time...we were all a nutstain in Adam's undies.

Anyways, these crazy people that fast, could be practicing something to show that they are closer to God by respecting his wishes and not eating food or "the apple".