METAMYOSYN® Protein Blend The renowned MET-Rx protein formulation contains 21g per serving of our exclusive METAMYOSYN® protein blend, which combines premium whey protein isolates and casein proteins, plus L-Glutamine and naturally-occurring branched chain amino acids (BCAAs,) -Isoleucine, Leucine and Valine.
• Helps support muscle mass* • Low in fat • Tastes great
