Foods, Plants and Household Items Toxic to Dogs and Cats

The numbers

What the poison-control statistics show

The ASPCA’s 2025 toxin ranking reads like a tour of an ordinary home. Over-the-counter medications and supplements lead with 16.9% of exposures. Food and drink follow at 16.4% — grapes, raisins, xylitol chewing gum, onions and garlic make up the largest share. Human prescription medications take third place. Chocolate, counted as its own category, accounts for 13.6% on its own. Household products — cleaners, paints — cover 6.4%, and insecticides 3.8%.

The UK data agrees on the culprits: the VPIS 2025 annual report lists chocolate, non-steroidal anti-inflammatory drugs (NSAIDs), anticoagulant rodenticides, Allium species (onion, garlic, leek) and grapes as its most common agents.

Two different countries, two different reporting systems — the same five cupboards.

The kitchen

Foods the sources list as toxic to dogs and cats

Chocolate is the single most reported food. Pet Poison Helpline names it the most common toxin it manages in dogs, and it alone generated 13.6% of ASPCA exposures in 2025. The mechanism, the amounts that matter and the timeline deserve their own space — we cover them in “My dog ate chocolate”.

Grapes and raisins are consistently associated in the veterinary literature with acute kidney injury in dogs — and the sources emphasise that a safe amount has never been established, which is precisely what makes them treacherous.

Xylitol, the sweetener in sugar-free gum, some peanut butters and baked goods, is described by Pet Poison Helpline as causing a rapid insulin release in dogs: signs of low blood sugar — vomiting, weakness, stumbling — can appear within 30 minutes to 2 hours of ingestion.

Onion, garlic and their relatives (the Allium family) damage red blood cells in both dogs and cats. The effect is cumulative and delayed — the VPIS ranks Allium among its top agents year after year.

The sources also flag macadamia nuts, alcohol in any form, and raw yeast dough. The common thread: none of these are “bad food” for humans. What is a snack for you can be an emergency for the animal — which is why the question “what are dogs and cats not allowed to eat?” belongs to the published toxicology lists, not to intuition.

The vase and the windowsill

Plants toxic to cats and dogs

For cats, one family stands above everything else: true lilies (Lilium and Hemerocallis). The toxicology sources describe every part of the plant as dangerous to cats — petals, leaves, pollen groomed off fur, even the water in the vase — with acute kidney injury as the documented outcome. A bouquet on the table is, for a cat, an exposure risk, not décor.

For dogs and cats alike, the commonly listed indoor and garden plants include sago palm (severe liver failure; every part toxic, seeds most concentrated), dieffenbachia and philodendron (oral irritation and swelling), spring bulbs — tulips, daffodils, hyacinths, with the bulb itself the most toxic part — and oleander, whose cardiac toxins the sources treat as dangerous for practically every species.

The practical difficulty the sources keep noting: plants come into homes unlabelled. The florist’s bouquet does not carry a species list — and “plants toxic to cats” is one of the most-searched veterinary questions in every language for exactly that reason.

The pillbox

Human medications: the top of every list

It is worth pausing on the fact that the number one category is not food at all. OTC medications and supplements — 16.9% of ASPCA exposures — plus human prescription drugs in third place mean that, taken together, the medicine cabinet outranks the kitchen.

The recurring names: ibuprofen and other NSAIDs (a top-five VPIS agent — dogs will chew through a dropped blister pack), paracetamol/acetaminophen, which the sources single out as exceptionally dangerous to cats even in small amounts, ADHD medications and antidepressants, and increasingly vitamin D supplements and skincare products — the ASPCA specifically attributes part of the 2025 rise to creams and masks popularised on social media.

The pattern behind these cases is rarely malice and rarely even carelessness — it is a pill dropped on the floor, a handbag left open, a tube on the nightstand. And the sources are unanimous on one more point: giving an animal a human medication “that worked for me” without veterinary guidance is how a large share of these cases begin.

Garage and cupboard

Antifreeze, rodenticides, insecticides, cleaners

Antifreeze (ethylene glycol) is the classic garage hazard: the literature describes it as sweet-tasting and dangerous in very small quantities, with cats especially sensitive — and with kidney failure arriving after the early signs have seemed to pass.

Anticoagulant rodenticides — among VPIS’s most common agents — carry a different trap: signs of internal bleeding may only appear days after ingestion, long after the moment anyone would connect cause and effect.

Insecticides covered 3.8% of ASPCA exposures. The best-documented household mistake is applying a permethrin spot-on intended for dogs to a cat — the feline toxicity of concentrated permethrin is one of the most consistently repeated warnings in the veterinary literature.

Cleaners and paints made up a large share of the household-products category (6.4%). Curiosity plus a freshly mopped floor or an open bucket is usually all it takes.

The signs

Dog and cat poisoning symptoms, as the sources describe them

The signs the toxicology sources list most often: vomiting and diarrhoea, drooling, lethargy, loss of coordination, tremors, seizures, unusual thirst, and changes in heart rhythm. Which of these appear — and how fast — depends entirely on the agent: xylitol can act within the hour, chocolate typically within 6 to 12 hours, while rodenticides and grape-related kidney injury can stay silent for days.

That delay is why every poison-control organisation phrases its advice the same way: do not wait for symptoms. If an exposure is witnessed or suspected, their recommendation is to contact a veterinarian or an emergency line immediately, with the packaging of the product in hand — the ASPCA runs a 24-hour hotline in the US, Animal PoisonLine serves pet owners in the UK, and in Romania the fastest route is the nearest open clinic (find a veterinarian).

What none of the sources recommend: inducing vomiting, feeding milk, or trying a home antidote on your own initiative. The toxicology services exist precisely because the right response depends on the agent, the amount and the animal.

The takeaway

In short

Statistically, the dangerous place for a dog or a cat is not the street — it is the home, and the top hazards are things nobody thinks of as poison: gum, grapes, a lily, a painkiller. The prevention the sources describe is unglamorous: food out of reach, medications behind a door, species checked before a bouquet enters the house, and product packaging kept until the pet has lost interest.

And when the question is “how much is dangerous?” — the answer should come from a published source, not from a forum thread. That is the entire premise this reference is built on.

larespecoris.vet — sourced, or silent.