Arnold Muscle Bar Reviews Brian E. March 2, 2015 Post-Workout Reviews, Protein Supplement Reviews MusclePharm will soon be adding Muscle Bar to its Arnold Schwarzenegger Iron Series. Arnold Muscle Bar is a protein bar that offers 30 g of protein and is 370 calories per serving. Additionally, there is zero trans-fat. From a teaser image, we can see that the Arnold Muscle Bar will come in at least one flavor, Chocolate Peanut Butter. An official ingredient profile hasn’t been released yet. We are anxiously waiting for more information. As soon as we get additional details, we’ll be updating this! So, don’t forget to check back. In the meantime, you can check out the other protein products in the Arnold Schwarzenegger Series including Arnold Schwarzenegger Series Iron Mass and Iron Whey. Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website To leave a comment please enable JavaScript in your browser settings!