Helps build lean muscle. 10 g protein. 3: After. With other natural flavor. Learn about the science behind PowerBar. Good food, good life. Good to Know: Did you know that consuming high quality protein within 1 hour after training can help build lean muscle? Good to Remember: This PowerBar Protein bar has 10 g of protein to support muscle growth and recovery. Nutritional Compass. PowerBar is backed by Nestle's worldwide leadership in nutritional science. You're stronger than you think. www.PowerBar.com.