We Are What We Eat
"You are what you eat." How many times have we heard that saying? Often, it's said to discourage us from over-indulging in sweets and what we generally call "junk food." A more accurate expression, however, would be, "You are what you digest." What we consume literally becomes part of us. The nutrients in a banana assimilate into our bodies, and we excrete what we cannot use.
Yes: what we eat (and digest) becomes us.