Glucerna shakes are delicious grab-and-go small meal or snack replacements designed for people managing their blood sugar. Glucerna shakes have Carbsteady, unique blends of slow release carbohydrates to help manage blood sugar,* as well as 12 grams of protein, 140 calories, and essential vitamins & minerals. They are suitable for lactose intolerance (not for people with galactosemia) and are gluten-free. Glucerna is the # brand recommended by doctors for people with diabetes.