Canadian Brand. Noah's Ark human grade taurine supplement is specially formulated to support feline heart health, vision, digestion, and overall wellbeing. Taurine is an essential amino acid for cats and plays a critical role in maintaining healthy cardiac function, eye health, immune support, and nervous system function. Made with high-quality human grade ingredients and third-party tested for purity and safety, this easy-to-use supplement is an excellent addition to raw, homemade, or supplemental feeding routines to help ensure cats receive optimal taurine support.