My cat licked the poppy seeds off half a bagel I left on the table — is that dangerous for a 5 kg

Short answer

The risk is very low. The trace opiates in poppy seeds are a concern in large, pure quantities, not the sparse coating on a baked good. A cat licking a few dozen seeds off a bagel is extremely unlikely to show any sedation or other effects. The bigger issue is often the bread itself — rich, yeasty dough can cause gas or an upset stomach. Watch for any signs of digestive discomfort like a bloated belly or soft stools over the next day. If she acts normally, you can relax.

Poppy seeds — Food safety facts

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

Contain trace opiates and can show up on a drug test. A few on bread are harmless.

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

Poppy seeds 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.

Poppy seeds can turn up now and then, but not as a daily habit: keep the rest of the day's food unchanged and watch the litter box and how quickly they finish the next meal.

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

Open the full food page: Poppy seeds food facts →

My cat licked the poppy seeds off half a bagel I left on the table — is that dangerous for a 5 kg adult?

Poppy seeds — Food safety facts

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