The Truth of “You Are What You Eat”

What we think and say to ourselves becomes our destiny—good or bad, right or wrong, weak or strong. In the same vein, I loathe the statement:  You are what you eat. Let me drag out my eating-disordered-chubby-kid-fat-adult-weight-struggling soap box and dust it off for this one. First, who said we are what we eat? Who was that? And where is that