Do you feel tired after eating? Do you crave something sweet all the time, even right after a meal? Are you struggling with stubborn belly fat that won't budge no matter what you try? It might not be a matter of "willpower" — it could be insulin resistance, a condition affecting millions of people who don't even know they have it. As an Associate Professor of Nutrition and editor of the international scientific reference book The Glycemic Index (CRC Press, 2019), I've spent years studying and...