Animal Nitro Overview Building Blocks. Those are the basics, the core fundamentals. The essentials. The stuff you just can't do without. That is what you get in each and every pack of Animal NitroČŘ”essential amino acids or EAAs. EAAs are the aminos your body can't produce by itself, so you need to get em in on your own. Animal Nitro provides you with ample doses of EAAs in easily absorbed, uncoupled form to kick start the growth process. Enhance the anabolic response, fight muscle wasting catabolism and promote heightened protein synthesis, all with the essential, essential amino acid supplement--Animal Nitro. Animal Nitro Description from Universal Nutrition Accelerated Amino Transport. Aminos are the basic building blocks of muscle. Aminos can also trigger anabolism, the cornerstone of muscle growth. As a lifter, you need them, especially the right ones. While there are nearly two dozen different amino acids, only a select few are absolutely essential for igniting the anabolic drive, as new research has shown. Not surprisingly, these required aminos are the same ones found in human muscle protein. Animal Nitro is the first and only supplement that contains the correct ratios of those aminos based on human muscle protein itself.