Curious facts about pets: cats can not taste sweet foods

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Cats are known to have many strong senses, as they have sharp hearing, visual ability equipped for movement and darkness, and a very sensitive sense of smell. However, cats' sense of taste is much less complex than in humans, dogs and some other animals.

Show key points

  • Cats possess powerful senses such as excellent hearing, night vision, and an acute sense of smell, but their sense of taste is notably weaker.
  • Unlike humans who have around 9,000 taste buds, cats have only about 470, limiting their taste sensitivity.
  • Cats cannot detect sweet flavors due to a dysfunctional TAS1R2 gene that renders their sweet taste receptor nonfunctional.
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  • Interestingly, cats have taste buds that allow them to detect compounds like ATP, which signals the presence of meat and aligns with their carnivorous diet.
  • A cat’s strong sense of smell compensates for their limited taste, allowing aroma to enhance their perception of food flavor.
  • Though some cats seem to enjoy sweet foods like ice cream, it’s the fats or other flavors—not the sweetness—that they're responding to.
  • It's important to avoid giving cats human food, especially sweet treats, as they are both unnecessary and potentially harmful to their health.

Strange things that cats can taste

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Cats have relatively few taste buds (about 470) compared to humans (about 9,000). It also means that her sense of taste is weaker than ours. Although cats can't taste sweet flavors (we'll learn why) soon, they do have taste buds for things we don't, including water and, in particular, the energy complex adenosine triphosphate (ATP). ATP provides energy in living cells, and it is believed that cats' ability to taste it indicates to them the presence of meat in what they eat. This is important because cats are omnivores and must eat meat in order to survive.

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Taste + Smell = Flavor

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The smell of food also affects what cats eat. Even for humans, about 70 to 75 percent of what we taste comes from smell, because it is the combination of taste and aroma that creates the flavor. So cats' superior sense of smell can make up for their lack of taste buds, and they can still enjoy different flavors of food, such as chicken or white fish.

A fake gene and a lost future

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Why can't cats taste sweet flavors? Well, it's due to her genes – more specifically, the "fake" dysfunctional gene. One study compared the genes of cats to other species, such as dogs and humans, that respond to sweet tastes. Specifically looked at the TAS1R2 and TAS1R3 genes, which together encode and encode the sweet taste receptor. While the Tas1r3 gene is the same as the Tas1r3 gene found in dogs, Tas1r2 has multiple differences (defects), and it has been concluded that Tas1r2 is a false gene (a defective version of the functional gene). This means that cats cannot prepare the future necessary for the discovery of sweet tastes.

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But my cat loves ice cream!

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If your cat loves sweet foods (note: ice cream is not recommended for cats), it's the other accompanying flavors you taste that make them love these foods – not the delicious ice cream sweetness we like.

Remember that there are many reasons why you should tell cats "no food for people" including that human foods can be dangerous to cat health. Sweet foods like candy are a nice treat for us, but not for cats – and they can't taste the sweetness we like anyway.

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