Grenade Carb Killa Shake White Choc 330ml is a smooth and creamy high protein drink with under 200 calories* and is seriously indulgent. With 25g of protein and 7.3g* of carbs, Carb Killa Shake is a convenient way to consume additional protein between meals without unwanted calories or carbs. Initially, in 3 delicious flavors, this thick and creamy shake is as technologically advanced as the bars and can be consumed throughout the day. Informed-Sport Registered.