Isopure Low Carb Meal Replacement Shake-Strawberries Cream by Nature"s Best 20 Packet Isopure Low Carb Meal Replacement Shake Nature"s Best Isopure Low Carb Meal Replacement Shake the first and only product of its kind to contain 42 grams of 100 whey protein isolate. All impurities have been removed to provide you with a great tasting lactose free low fat aspartame free glutamine enriched state of the art meal replacement shake mix. Isopure Low Carb MRS is SUGAR-FREE and is instantized so it can be taken anywhere and mixed with a spoon.