Can dogs eat walnuts? No — why, and what to do
Quick answer: No — walnuts is not safe for dogs and should never be given.
Quick verdict
Unsafe
Key risk
Can carry moulds that produce toxins, and are a choking and blockage hazard; high in fat.
Why
Walnuts are best avoided for dogs.
Keep walnuts out of reach
Biodegradable Scented Dog Poo Bags — 50 or 200
Citrus-scented biodegradable poo bags with tie handles — breaking down in months rather than the centuries a standard plastic bag takes.
From£4.49
DIRTBAG Compostable Dog Poo Bags – Plastic-Free
Genuinely compostable, plant-based poo bags that break down in 180 days — strong, leak-proof, tie-handle bags with no hidden plastics.
From£6.99
LickiMat OH Bowl for Dogs — Slow Feeder with Tongue-Cleaning Tips
A vet-developed dog feeding bowl with raised rubber tips that clean the tongue as your dog licks — calming, dishwasher safe, and available in three sizes.
From£12.99
Tarhong Concentric Circle Slow Feeder Bowl for Dogs & Cats
A stylish slow-feeder bowl that encourages healthier, calmer mealtimes — available in blue, grey, or white.
£14.99
Can dogs eat walnuts, and why?
Walnuts are best avoided for dogs. Can carry moulds that produce toxins, and are a choking and blockage hazard; high in fat.
Dogs are omnivores, so most of their diet should be a complete, balanced dog food, with treats on top. They cope with a wide range of foods, but rich, fatty or sugary ones can cause stomach upset and, over time, weight gain or pancreatitis.
Warning — what to watch for
Can carry moulds that produce toxins, and are a choking and blockage hazard; high in fat.
If your dog has eaten walnuts, don’t wait for symptoms — contact your vet immediately, or call the Animal PoisonLine on 01202 509000 (24/7, UK). Signs of a problem can include vomiting, diarrhoea, drooling, lethargy, tremors or loss of appetite.
🚨 Find an emergency vet near youMore foods dogs might eat
More for dogs
If your dog has eaten walnuts, ring your vet — do not wait to see what happens. For preventing a repeat:
Tarhong Medallion Slow Feeder Puzzle Dog Bowl
A stylish BPA-free puzzle bowl that slows down greedy eaters — available in three sizes and a choice of colours.
From£10.99
Reusable Washable Puppy Training Pad
A quilted, machine-washable training pad that absorbs accidents and locks in moisture with a leak-resistant base. Reusable for puppy toilet training and senior dogs, in several bone and paw prints.
From£7.99
Grannicks Bitter Apple Spray — Chew & Lick Deterrent for Dogs
A non-toxic bitter-tasting spray that discourages dogs from licking wounds or chewing furniture and soft furnishings.
From£11.99
Simple Solution Extreme Stain & Odour Remover Dog
A 500ml concentrated enzyme spray for stubborn dog urine, vomit and faeces stains
£8.65
Feeding & nutrition guides
Frequently asked questions
Can dogs eat walnuts?
Unsafe. Walnuts are best avoided for dogs.
What happens if my dog eats walnuts?
Can carry moulds that produce toxins, and are a choking and blockage hazard; high in fat. If your dog has eaten walnuts, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.
Is walnuts poisonous to dogs?
Unsafe. Walnuts are best avoided for dogs.
Free printable: safe & toxic foods for dogs
walnuts is just one food — get the full one-page checklist of what’s safe, fine in moderation, or dangerous for dogs. Vet-sourced, yours to print and keep.
Check walnuts for another pet
Sources
Our verdict on whether dogs can eat walnuts draws on established UK and US veterinary and welfare organisations. Individual pets, quantities and preparation vary — always confirm with your own vet.