Karimian N, et al. - Pre-operative complex carbohydrate (CHO) drinks are recommended to attenuate post-operative insulin resistance. Herein, researchers compared the insulin response to simple CHO vs. simple CHO supplemented with whey protein. They found unaltered insulin response in healthy individuals who consumed simple CHO drink supplemented with whey protein. They also noted that peak insulin responses to simple CHO with or without whey protein were lower than that previously reported with complex CHO drinks.