Your cat cannot taste sugar — the gene simply broke

Offer a cat a spoonful of ice cream and it may well lick it. But not for the sweetness. It's tasting the fat.

Cats are missing a working copy of one of the two genes needed to build the sweet taste receptor. In most mammals that pair is intact. In cats, one half is a broken remnant — a pseudogene, carried by domestic cats and their wild relatives alike. Lions, tigers, your tabby: all sweet-blind.

It fits what they are. An obligate carnivore living on mice and birds has no use for detecting ripe fruit. The machinery fell out of use, mutated, and was never missed.

Why it still matters at the food bowl:

Sweet treats are wasted on a cat. What pulls them in is fat, amino acids and texture — and temperature, since food near body heat smells most like fresh prey.

A fussy cat is usually telling you about smell, not flavour. Warm the food slightly, or try a different shape of kibble, before you try a tastier-sounding one.

And don't rely on sweet-blindness as safety. Cats have still been poisoned by antifreeze, which they take for other reasons entirely. Any suspicion of it is a same-hour emergency — call your vet immediately, don't wait for symptoms.

Your cat isn't ignoring your pudding to be polite. That flavour was deleted from its species a long time ago. 🐾