As you have suggested we can eat as we want and live very long. When the mind is happy, calm, and loving so does the body.
Most individuals have ignorant bliss, while individuals that study typically encounter fear/worry, unhappiness, stress, etc.. This takes a toll on the body and reduces the LIFE FORCE.
By taking information without a emotional response the body does create the "reality" inside.
IMPARTIAL mind with a desire to be aware/alive is very useful.
My suggestion would be, fruit eater with love for everything and accept diversity in all things.
The only law of life is LOVE. The natural habitat for humanimals if love and peace.