Our bodies are just like soil--it is all the other little flora and fauna within it that mean whether we are sick or healthy.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus
I was listening to a talk from a guy on this sort of topic. He reckons it isn't "we are what we eat", but rather "we are whom we feed". Some of the bacteria in our gut release certain chemicals which alter our mood, and even behaviour. Our very personality can be controlled by the ecosystem that lives within us. Hence the phrase.
Legend has it that if you rub the right tiny ad, a genie comes out.