Animal M•Stak affects biochemical mechanisms which promote anabolism: enhanced nitrogen retention, nutrition-partitioning, improved insulin function, increased protein synthesis, and reduced protein catabolism. Each of these mechanisms work together in Animal M•Stak to promote your body’s overall anabolic drive. And because Animal M•Stak can accomplish these goals without substrates, Animal M•Stak is perfectly suited for lifetime natural bodybuilders and powerlifters.