This diet already exists. It is called by many names: elemental diet, space diet, astronaut diet.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1410941/pdf/gut0...

http://en.wikipedia.org/wiki/Elemental_diet

Some hospitals may serve this to very ill patients. It has been the subject of much study. It is customized based on the needs of an individual. Most can't stand the taste. It generally works well in the short term, although I am not aware of any long term studies that have been done.

I too am interested in this. Have they determined that animals live longer or shorter lives on this diet? It could be rather easy to determine this: considering the relatively short life span of earthworms or fruit flies.

Anyone who is interested in this topic: email me at: nickelnerve@gmail.com