The ones to remember
Most things cats come across are harmless. A few are deadly in tiny amounts, and they’re in ordinary homes:
| Lilies | Every part, even pollen and vase water. Kidney failure. |
|---|---|
| Paracetamol | Even a small dose can kill. Never give human painkillers. |
| Dog flea drops | Many contain permethrin, often deadly to cats. |
| Antifreeze | Sweet-tasting. A teaspoon can kill. |
| Onions and garlic | Damage red blood cells, even cooked into leftovers. |
| Oleander | A common garden shrub that affects the heart. |
Feeding street cats
Leftovers are kind, but they often hide onion, garlic, salt or cooked bones. Cat food is cheaper than you’d think and much safer. Here’s what to feed street cats, and our full guide to what’s poisonous to cats.
This checker is general information, not veterinary advice. Every cat is different, and an amount that’s fine for one may not be for a kitten or a cat that’s ill. If a cat has eaten something and you’re worried, call a vet.