Can Cats Eat Onion Gravy? NZ Safety Answer

Quick answer

No. Cats should not eat onion gravy. Onion, garlic, chives and leeks are unsafe for cats, and gravy is not a cat treat.

Why

Pet Poison Helpline states that Allium foods such as onion, garlic, chives and leeks are poisonous to dogs and cats, with cats among the more sensitive species. ASPCA also lists onion, garlic and chives among people foods to avoid. In NZ kitchens, cats may lick roast gravy, pie filling, takeaway leftovers, stock-based sauces or plates left near the sink.

If your cat ate it

Contact your NZ vet, after-hours emergency clinic, or SPCA for advice, especially if the food contained a known toxin or your pet seems unwell.

Safer alternatives

Use complete cat food, a cat-specific wet food, or a small amount of plain food your vet has already approved. Do not use onion gravy, stock powder, roast-pan drippings or seasoned sauce.

Related reading

• Cat Food Guide NZ
• Cat Care NZ Complete Guide
• Pet Emergency Kit NZ Civil Defence Guide

References

• Pet Poison Helpline, Onions, checked 2026-06-13: https://www.petpoisonhelpline.com/poison/onion/
• ASPCA Animal Poison Control, People Foods to Avoid Feeding Your Pets, checked 2026-06-13: https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets

Important notice

*General food-safety information for NZ pet owners, reviewed against ASPCA/VCA/SPCA guidance.*