In his book The Omnivore’s Dilemma, Michael Pollan outlines the problems created by not feeding cattle what they have evolved to eat – grass.  Feeding cattle corn, he says, violates the biological or evolutionary logic of bovine digestion.  And moreover, most of the health problems that afflict feedlot cattle, “can be traced either directly or indirectly to their diet.”  As a type 1 diabetic, I know all too well what it means to suffer health problems related to diet.  No matter how carefully I count carbohydrates,...