Actually Astrologer Linda Goodman believed that humanity's true "food" goal should be to become breathitarians...living off of air. According to
her, the path starts with becoming a lacto/ova vegitarian, to becoming vegan, to becoming a fruitarian and then being able to live off of nothing but
air.
However she also said that Carnivorous animals weren't carnivorous until humans made them that way.
I didn't say I agreed with her! For the most part, she was a crazy lady. Animals have been around longer than humans so obviously her logic is on
that part is wack.
However I don't think it's entirely impossible to survive on air. I remember learning about biofeedback in psychology class and how buddist monks
and other highly spiritual people would use it to survive for long periods of time without food or water.