Human like creatures have existed on this planet

Human-like creatures have existed on this planet for as long as four million years, and for roughly 99 percent of this time, they were hunters and gatherers…. This means that when we’re sitting down to lunch, our stone-age bodies "expect" to be fed the same types and ratios of fat that nourished our cave-dwelling ancestors.  When we eat French fries cooked in partially hydrogenated vegetable oil instead of wild plants; or wolf down a fat-laden hamburger heaped with mayonnaise instead of meat from a lean, free-ranging game animal, our bodies register the insult.  ~Artemis P. Simopoulos and Jo Robinson, The Omega Diet, 1999

Some people have a foolish way of

Some people have a foolish way of not minding, or pretending not to mind, what they eat.  For my part, I mind my belly very studiously, and very carefully; for I look upon it, that he who does not mind his belly will hardly mind anything else.  ~Samuel Johnson, quoted in James Boswell, The Life of Samuel Johnson