MARYLAND MUSCLE MACHINE. Food supplement. With sweeteners. Contains caffeine (200 mg / serving size 8,75 g; 400 mg / serving size 17,5 g); not recommended for children or pregnant woman. The Maryland Muscle Machine is a pre-workout product that contains a potent blend of active substances. Maryland Muscle Machine is recommended for physically active people, especially those who engage in high intensity and high volume strength training sessions.