0 artificial flavor. 0 sugar per can. 0 fat per can. BCAA'S: Citrulline. 300 mg natural caffeine. Caffeine from All Sources: 300 mg per can. Reign Inferno Red Dragon is low in calories. Thermogenic fuel. Burns calories (Thermogenic ingredients increase metabolic energy levels to produce heat, which burns calories in combination with exercise and a healthy diet). Accelerates metabolism. Reduced fatigue. Branched-chain amino acids. Increased concentration. 0 artificial color. reignbodyfuel.com.