New Look! Delicious new flavor brought to you by Pure Protein! Pure Protein Birthday Cake bars provide high-quality protein for a convenient pre or post workout snack. With 20 grams of protein, 3 grams of sugar and 200 calories, new Pure Protein Birthday Cake bars give you a reason to celebrate! When finding time for fitness comes first, how you feed your body makes a big difference. Packed with protein and loaded with flavor, Pure Protein bars, shakes and powders serve up the energy you need to keep crushing it in and out of the gym, pre- and post-workout.