heck, all a body 'needs' is a mixture in a drip like they give coma patients. The body never 'needs' to get out of bed and the mind never 'needs' to wake up.
But i think i'll stick to waking up, and living each day. That includes eating balanced meals. I eat what i want, just everything in moderation. You guys going to each extreme of the food chain are just whacko in my mind