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Christmas with dogs and cats

Plants, cookies, tinsel and lots of visitors: the holidays bring more hazards for dogs and cats than usual. Here’s what is really toxic and what only has a bad reputation.

The short answer

The main Christmas toxins are chocolate, fruitcake with raisins, Christmas rose, amaryllis and mistletoe; lilies in a bouquet are life-threatening for cats. Poinsettia is less dangerous than its reputation but still belongs out of reach. Tinsel and ribbon are dangerous, especially for cats, because they can injure the gut. If your pet ate something toxic, call your vet or an emergency clinic right away.

Plants: what is toxic

  • Christmas rose: toxic to dogs and cats; it contains substances that affect the heart (ASPCA, Pet Poison Helpline).
  • Amaryllis: toxic, and the bulb is the most poisonous part (ASPCA).
  • Mistletoe: toxic (ASPCA); the Pet Poison Helpline considers European mistletoe of more concern.
  • Holly and English ivy: toxic, usually with drooling, vomiting and diarrhea (ASPCA, Pet Poison Helpline).
  • Poinsettia: toxic, but usually with only mild signs (ASPCA, Pet Poison Helpline). For cats, Cornell says a sizable amount could even prove fatal.
  • Lilies in a bouquet: life-threatening for cats; even a little pollen can damage the kidneys (Pet Poison Helpline, Cornell).
  • Christmas cactus: non-toxic (ASPCA), but it can cause vomiting and diarrhea (Pet Poison Helpline).

Cookies, fruitcake and the holiday roast

  • Chocolate is toxic, and cocoa powder and dark chocolate are the most dangerous (ASPCA).
  • Fruitcake contains raisins, which can cause kidney failure; rum adds alcohol (Pet Poison Helpline).
  • Sugar-free baked goods can contain xylitol, which is toxic to dogs (ASPCA).
  • Nutmeg is toxic in large amounts; the pinch in baking is very unlikely to cause serious toxicity, though mild stomach upset could occur (Pet Poison Helpline).
  • Fatty leftovers, turkey skin and gravy can cause pancreatitis (Pet Poison Helpline). Never give cooked bones or stuffing with onions.
  • A small piece of boneless turkey is a fine treat (ASPCA); skip the skin and fat.

Tinsel, ribbon and decorations

  • Tinsel and ribbon: cats especially, but also dogs, swallow them easily. The intestines bunch up along the string, which can saw through the intestinal wall; surgery is usually needed (Pet Poison Helpline, Merck, International Cat Care). Better skip tinsel and clear away ribbon after opening gifts.
  • If a string hangs from the mouth, never pull it; go to the vet (Merck).
  • Never leave candles unattended (ASPCA); cats easily burn themselves swatting at the flame (Cornell).
  • Batteries: a punctured battery can burn the mouth and esophagus. Don’t make your pet vomit; go to the vet right away (ASPCA, Pet Poison Helpline).
  • Lights and cords: chewing on them risks an electrical shock (ASPCA).
  • Glass ornaments: shards injure the mouth and gut (ASPCA). Hang only unbreakable ornaments low (Cornell).
  • Salt-dough ornaments are dangerous even when dry, because the salt upsets the electrolyte balance (ASPCA).
  • Snow globes can contain antifreeze (ethylene glycol) (ASPCA).
  • Liquid potpourri and scented oils: cats are especially sensitive, and they can burn the mouth and esophagus (Pet Poison Helpline, Cornell).

The Christmas tree

Anchor the tree so it can’t tip over (ASPCA). Pine needles are barely toxic (cats are sensitive to their oils), but they don’t digest well and can injure the gut (Pet Poison Helpline).

ASPCA calls tree water a breeding ground for bacteria. Cornell advises plain water with no chemicals added; cover the stand.

Visitors and commotion

  • Give your pet a quiet place to retreat to (ASPCA, Cornell).
  • Ask guests not to feed your pet and to keep medications and handbags out of reach (ASPCA, Pet Poison Helpline).
  • With lots of visitors, cats easily slip out the open door (Cornell).
  • Secure the trash with bones and leftovers (ASPCA).

In an emergency

If your pet ate something toxic, call your vet or an emergency vet clinic right away, even if your pet seems fine. You can also call ASPCA Animal Poison Control at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661 (a fee may apply). Don’t make your pet vomit unless a vet tells you to.

Before the holidays, check which clinic near you is open for emergencies.

Questions

Is poinsettia toxic to cats?

Yes, according to ASPCA. Usually it causes drooling and vomiting, but Cornell says a sizable amount could prove fatal. Keep it out of reach.

Is tinsel dangerous for cats?

Yes. The intestines can bunch up along swallowed tinsel, and the string can injure them (Pet Poison Helpline, Merck). Never pull a string hanging from the mouth; go to the vet.

Can dogs eat Christmas cookies?

Better not. Fat, sugar and spices don’t agree with them (ASPCA), and some cookies contain chocolate, raisins, macadamia nuts or xylitol, which are toxic.

Is Christmas tree water toxic?

It is a breeding ground for bacteria (ASPCA); even with preservatives it usually causes only mild stomach upset (Pet Poison Helpline). Cover the stand and use plain water.

Sources

Last checked: October 2026