A cat with an active URI ( upper respiratory infection), or an aging cat, may have a reduced sense of smell and go "off" his food (taste is associated with smell). You can help by warming the food slightly, to enhance its odor. read more
A domestic cat's sense of smell is about fourteen times as strong as humans'. Cats have twice as many receptors in the olfactory epithelium (i.e. smell-sensitive cells in their noses) as people do, meaning that cats have a more acute sense of smell than humans. read more