Cat is the only common most and domesticated animal that cannot taste sweet. If we say this in a broad literary style then Sugar and spice and everything is not good for a cat. Our feline friends are interested in only one thing: meat. This is not just because a killer inside every domestic tabby simply waits to catch a bird or torture a rat, it is also because cats have the ability to taste the sweetness that they have tested to date Gaya is unlike every other mammal.
The tongue of most mammals carries taste receptors — proteins on the cellular surface that bind to an incoming substance, which activates the internal functioning of the cell that gives rise to the signal sent to the brain.
Humans enjoy five types of taste buds (possibly six): sour, bitter, salty, umami (or non-vegetarian), and sweet (as well as possibly fat). The sweet receptor is actually composed of two coupled proteins generated by two different genes: known as Tas1r2 and Tas1r3.
When functioning properly, the two genes make paired proteins and when something sweet enters the mouth, the news reaches the brain, mainly because the sweetness is a sign of rich carbohydrates - an important food for plant-eating. Source and malleable, like humans. But cats are from the great descendant Carnivora and, unlike some of its lesser members, such as omnivorous bears or, even more frightening, vegetarian pandas, they eat exclusively meat. So next time you buy a cat just do not get any sweet for it because it wiould not be able to smell and eating it is very rare outcome to even expect.