Can cats eat sugar?
Quick answer: Not recommended — sugar is best avoided for cats.
Quick verdict
Caution
Key risk
Cats cannot taste sweetness and gain nothing; sugar can cause stomach upset and weight gain.
Why
Sugar is best avoided for cats.
Can cats eat sugar, and why?
Sugar is best avoided for cats. Cats cannot taste sweetness and gain nothing; sugar can cause stomach upset and weight gain.
Cats are obligate carnivores: they must get most of their nutrition from meat and need nutrients such as taurine that only animal products provide. They lack some enzymes for processing plants and carbohydrates, so fruit and veg offer little benefit and can upset their stomach; many cats are also lactose intolerant.
Warning — what to watch for
Cats cannot taste sweetness and gain nothing; sugar can cause stomach upset and weight gain.
If your cat has eaten sugar, don’t wait for symptoms — contact your vet immediately, or call the Animal PoisonLine on 01202 509000 (24/7, UK). Signs of a problem can include vomiting, diarrhoea, drooling, lethargy, tremors or loss of appetite.
🚨 Find an emergency vet near youMore foods cats might eat
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Frequently asked questions
Can cats eat sugar?
Caution. Sugar is best avoided for cats.
What happens if my cat eats sugar?
Cats cannot taste sweetness and gain nothing; sugar can cause stomach upset and weight gain. If your cat has eaten sugar, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.
Is sugar poisonous to cats?
Caution. Sugar is best avoided for cats.
Free printable: safe & toxic foods for cats
sugar is just one food — get the full one-page checklist of what’s safe, fine in moderation, or dangerous for cats. Vet-sourced, yours to print and keep.
Check sugar for another pet
Sources
Our verdict on whether cats can eat sugar draws on established UK and US veterinary and welfare organisations. Individual pets, quantities and preparation vary — always confirm with your own vet.