Grenade .50 Calibre is the next generation pre-workout from multi award winning sport nutrition experts Grenade. The formula combines research-validated ingredients including creatine mono, beta alanine, citrulline marlate and bitter orange peel powder. Turn every workout into explosive, and energy fuelled.50 Calibre also contains patent pending MDS (Muscle Defence System). Take it to the next level with Grenade .50 Calibre. Grenade .50 Calibre is the next generation pre-workout from multi award winning sport nutrition experts Grenade. The formula combines research-validated ingredients including creatine mono, beta alanine, citrulline marlate and bitter orange peel powder. Turn every workout into explosive, and energy fuelled.50 Calibre also contains patent pending MDS (Muscle Defence System). Take it to the next level with Grenade .50 Calibre.