27 g protein. Post exercise recovery. Helps build lean muscle. Helps build strong bones. Reduce fatigue. Helps improve concentration. Gluten free. Pump up the beast! Facebook. Twitter. YouTube. Instagram. monsterenergy.com. Monster Energy Blend: glucose, taurine, caffeine, vitamin B3, inositol, L-carnitine, vitamin B6, vitamin B2. Caffeine from all sources: 157 mg per bottle.