The URL below discusses fasting from a Buddhist monk's perspective.
Note the very interesting paragraph re: fasting was a spiritual hindrance,
not a help, to the Buddha.

I am posting this because it gives a different view on fasting and  may
interest some list readers. It is not my intention to promote religion.
Those who are anti-religion might be ofended by the URL below and
should not read it.

http://paramita.typepad.com/dharma_forest/2004/11/on_fasting_a_bu.html#more

PS on some other raw lists/bulletin boards, I see people discussing how
their diet allegedly makes them more spiritual. In my opinion, those views are
delusionary  and counter-productive - more likely to promote ego than
spirituality.

Tom Billings