Cat Health UK

Can Cats Eat Ham?

Updated 18 October 2026 · Researched against PDSA, Cats Protection and International Cat Care guidance

!Only as a treat

A small sliver of plain cooked ham is not toxic, but it is salty processed meat — an occasional taste, not a treat routine.

Ham is cooked pork that has been cured, which means salt. A cat's daily salt requirement is tiny, and a couple of slices of ham can be a meaningful load for a four-kilogram animal, especially if it happens often.

The fat content varies from lean cooked ham to fatty offcuts, and the fatty end is the one that upsets digestion. Plain, lean, cooked ham in a small piece is the only version worth considering.

What to watch for in the UK

If your cat has already eaten it

  1. A small piece: nothing to do beyond offering fresh water.
  2. A large amount: watch for vomiting, diarrhoea and heavy drinking; phone your vet if the cat seems unwell.

Signs that need a vet, not watchful waiting

  • vomiting
  • diarrhoea
  • increased thirst
  • reduced appetite

Out of hours, use your practice's emergency number. If you can, take the packaging with you — the ingredient list often tells the vet more than the description does. This page explains risk; it cannot diagnose your cat, and it deliberately contains no doses or home treatments.

If your cat is already vomiting, see the cat vomiting guide. For the wider red-flag checklist, use sick cat symptoms. If a plant rather than a food is involved, the toxic plants checklist is the right page.

Related foods

Browse the full A–Z of 36 everyday foods.

Related guides

References

This guide is for general information only and is not a substitute for veterinary advice. If you are worried about your cat, contact your vet.