" Do we need to eat what our ancestors did or eschew all carbs? I would propose that all we need to do is eat “safe carbs.” That means low sugar to prevent insulin resistance, and high fiber to reduce flux to the liver and prevent insulin hypersecretion. And while we’re at it, eat “safe fat,” that is, real fat rather than synthetic fat (such as trans fats, which can’t be metabolized). "

― Robert H. Lustig , Fat Chance: Beating the Odds Against Sugar, Processed Food, Obesity, and Disease