My favorite argument for food being more than just a percentual composition of nutrients is the fact that your gut is effectively able to smell.

> Olfactory receptor responding to gut microbiota-derived signals plays a role in renin secretion and blood pressure regulation

[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3600440/]

Beyond my scepticism regarding the long-term benefit of a simplification of eating down to relying to a single designed food source - I am also worried about the mindset of a person who is motivated in doing so.