Even if this could be proved, Scripture is the supreme judge, with miracles attesting to it. And Scripture nowhere teaching gaining spiritual life in oneself by physically eating, nor is that how Jesus lived by the Father, which is taught believes likewise live by Him. (Jn. 6:57; cf. Mt. 4:4; Jn. 4:34)
And your claim has competition you would rather not have.
http://trak.in/tags/business/2010/05/01/india-yogi-survives-70yrs-without-food-water/: An Indian Yogi named as Pralhad Jani claims that he has not had food or water for 70 years. He is now 82 years old and quite healthy.
Although, the claim for not eating or drinking for 70 years is unsubstantiated, he has been kept in one of the Indian hospitals to study how he can do that. He has been in hospital for past 8 days and has not touched water or food and appears to be in great health.
Next, read "New Age Medicine " by two Christian doctors of cases in S. America and you will realize how the devil can do miracles, and even the 1st 3 miracles of Moses were duplicated by the magicians