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My 4 kg cat got into two pieces of xylitol gum and some stevia gum — which one is the real danger?

Cats · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Xylitol is the real emergency. It drops blood sugar fast and can damage a cat's liver, even in tiny amounts. Stevia itself is not toxic to cats. Many stevia products are blended with xylitol though, so read the label carefully before giving any. Watch your cat for wobbliness, vomiting, or collapse, and call your vet right away if you think xylitol was involved.

Stevia — Food safety facts

Feed with care · Cats · full breakdown on the linked food page

The plant itself is not toxic, but many stevia blends are cut with xylitol or erythritol. Read the label.

Dogs and cats carry the same rating (Feed with care), so the notes below hold for either pet.

Stevia is not poisonous to cats, but it is easy to over-feed. Rich fat, salt or seasoning can bring on vomiting or diarrhoea within a day, and repeated large portions are a recognised trigger for pancreatitis.

If it ate some before you noticed, watch for vomiting, diarrhoea, loss of appetite, unusual tiredness or a painful, swollen abdomen over the next 24 hours. A one-off small amount in a healthy adult usually passes with water and rest; repeated exposure, a puppy or kitten, a senior, or a pet with an ongoing illness is a reason to call your vet the same day.

Why these cautions matter

Even a gram or two of xylitol can trigger a sharp drop in a dog's blood sugar, and larger exposures go on to damage the liver.

Added sugar brings empty calories, and over months that means weight gain and dental disease — both far harder to undo than to avoid.

The full verdict, portion guidance and serving notes are collected on the Stevia food facts page.

Open the full food page: Stevia food facts →