Cats should not have eggnog; it’s generally unsafe and can easily make them sick.

Why eggnog is bad for cats

  • Most cats are lactose intolerant, so the milk and cream in eggnog can cause vomiting, diarrhea, gas, and abdominal pain.
  • Eggnog is very high in sugar and fat, which contributes to obesity, pancreatitis, and dental issues in cats.
  • Many recipes include raw or undercooked eggs, which can carry bacteria like Salmonella that may cause food poisoning.
  • If the eggnog contains alcohol, even a small amount is toxic to cats and can lead to disorientation, low body temperature, breathing problems, or even death.
  • Spices such as nutmeg, often used in eggnog, are considered toxic to cats and can cause stomach upset and neurologic signs.

In short: eggnog (with or without alcohol) is a human-only holiday treat, not a safe “just a sip” drink for your cat.

What if my cat already licked some?

  • A tiny lick is usually not an emergency, but you should watch for vomiting, diarrhea, lethargy, wobbliness, or strange behavior over the next several hours.
  • Because alcohol and nutmeg are particularly risky, contact a vet or emergency clinic right away if your cat had more than a taste, or if the eggnog definitely contained alcohol or strong spices.

Safer festive alternatives

If you want your cat to join the holiday mood, try:

  • A small amount of plain cooked chicken or turkey with no seasoning, skin, or bones.
  • Vet-approved cat treats or wet food served in a special dish as a “holiday dinner.”
  • Catnip or a new toy as a seasonal “gift” instead of people food.

Mini “forum-style” take

“Can cats have eggnog?” In recent holiday Q&As and pet forums, vets consistently say no: the combo of lactose, sugar, fat, nutmeg, raw egg, and possible alcohol makes eggnog a textbook “do not share with pets” drink.

TL;DR

Cats should not have eggnog—alcoholic or non-alcoholic—because of lactose, sugar, fat, raw egg, nutmeg, and potential alcohol; keep it away and use cat- safe treats instead.

Information gathered from public forums or data available on the internet and portrayed here.