He spoke about Jesus in the desert and his fast, and confessed to me that he survived daily from eating 1 or two servings of fruit and about 4 oz of water. He was also in incredible shape for a 60 something year old; I witness him do 40 pushups straight without breaking a sweat. He was originally from Bangladesh and impacted me enough for me to read part of the Koran out of curiosity. Though I never converted, he made me see that religion in a different light during a time (Nov 2001) when Islam was demonized.
When I asked him how he was able to manage eating and drinking so little, he replied that his faith and focused prayer shielded him from the "chains of the flesh". He also claimed that fasting is necessary for spiritual cleansing.
Yogis and mystics have been able to fast for extremely long periods of time and I am convinced that the common denominator is accessing a trance like state of consciousness, done either with focused prayer or meditation. People in hypnosis have been documented to do amazing things with the body including incredible accounts of strengths and changes in bodily processes.
IMO that tells me that the mind is the ultimate power (physically speaking of course) and there is plenty that we do not know about it at our stage of development. In the future I believe that at one point whether by evolution or by genetic tinkering (hopefully the former and not the latter) we will go past the necessity of eating physical things. Everything we eat like the OP states, breaks down to energy and that energy derives from solar energy, so I am sure there will be a time when we cut down the middle man.
edit on 14-3-2012 by Chewingonmushrooms because: (no reason given)