/b/sixpacksmackdown/posts/musclepharm-arnold-schwarzenegger-iron-mass-ingredients-released As part of the Arnold Schearzenegger line of supplements created by MusclePharm will be their first mass gainer: Iron Mass. It is nice to see MusclePharm get into the mass gainer line of supplements and Iron Mass looks legit. A quick look at a few oen-USTelligent Community 11 Non-Production