Savoury umami taste of tuna is why cats love it
Domestic cats have the required ‘umami’ taste receptors on their tongues to respond well to an enzyme called inosine monophosphate and an amino acid called free L-Histidine which combine to produce a strong umami taste. Cats enjoy these taste receptors thanks to the inheritance of Tas1r1-Tas1r3 genes. The umami taste is described as the …