The garden's out, the coals are lit, and there is a dog sitting at your feet doing the single most persuasive stare in the natural world. British summer means barbecues — and it means a lot of dropped sausages, hopeful noses and well-meaning guests slipping "just a little bit" under the table. Some of it is harmless. Some of it can land your dog at the emergency vet. Here's a clear, calm guide to what's safe, what's dangerous, and how to keep the whole thing happy.
Can dogs eat barbecue food?
Some barbecue foods are safe for dogs in small amounts, but many are not. Plain, unseasoned, cooked meat is generally fine as an occasional treat. The danger comes from the things we add and cook alongside it: onions and garlic, salt and marinades, cooked bones, corn on the cob, fatty offcuts, and puddings containing chocolate, grapes or the sweetener xylitol. The safest approach is to decide in advance what your dog can have, tell your guests, and keep everything else out of reach.
Barbecue and summer foods that are dangerous for dogs
These are the ones to keep firmly off the menu:
- Onions, garlic, leeks and chives — all part of the allium family and toxic to dogs, damaging red blood cells. That includes onion in burgers, kebabs, relishes and many marinades.
- Cooked bones — cooked bones (from ribs, chicken, chops) can splinter and cause choking or serious internal injury. Never let a dog have them.
- Corn on the cob — the kernels aren't the problem; the cob is. Swallowed, it can cause a life-threatening intestinal blockage that often needs surgery.
- Fatty meat, skin and offcuts — rich, fatty trimmings can trigger pancreatitis, a painful and serious condition.
- Chocolate — toxic to dogs, and a common feature of summer puddings and s'mores.
- Grapes, raisins and sultanas — found in coleslaw, salads and cakes; even small amounts can cause kidney failure.
- Xylitol (birch sugar) — a sweetener in some sauces, peanut butters, cakes and sugar-free drinks; extremely dangerous to dogs.
- Alcohol — including the dregs in unattended glasses. Never let a dog access it.
- Salty snacks and heavy marinades — crisps, salted meats and salt-heavy rubs can cause salt poisoning and are best avoided.
- Avocado and raw dough — avocado stones and unbaked dough (which can rise in the stomach) are both hazards.
Summer foods dogs CAN enjoy (in moderation)
It isn't all bad news — plenty of barbecue and summer staples are perfectly fine in small, plain portions:
- Plain cooked meat — a little unseasoned, boneless chicken, turkey or lean beef, with no salt, oil, onion or marinade.
- Plain cooked burger — a small piece of a plain beef burger with nothing added is fine; skip the bun, cheese, relish and onion.
- Watermelon — hydrating and a summer favourite, with the seeds and rind removed.
- Cucumber — crunchy, low-calorie and refreshing.
- Carrot — raw or plain cooked, a great low-calorie chew.
- Blueberries and strawberries — a few make a lovely treat.
- Plain cooked potato or sweet potato — cooked, unsalted and without butter or oil.
Keep portions small: treats and table scraps together should stay under roughly 10% of your dog's daily calories, and too much rich "human" food at once is a common cause of summer tummy upsets. If your dog has a sensitive stomach, our guide to food for sensitive stomachs is worth a read.
The easy fix: bring their own treats to the party
The simplest way to stop the table-scrap begging — and the guilt-driven feeding from soft-hearted guests — is to give your dog their own barbecue. Hand out a few proper dog treats so they're part of the occasion without the risk. Small, natural options like Lily's Kitchen Cheese & Apple Training Treats or the Best Ever Beef Mini Burgers (both £3.49) let your dog have their "burger" while yours stays yours. Tell guests, kindly but firmly, that the dog is only having their own treats today — most people are happy to help once they know the rules.
Signs your dog may have eaten something they shouldn't
At a busy barbecue it's easy to miss the moment a sausage vanishes or a guest "just gives them a little bit". Keep half an eye on your dog through the afternoon and the evening after, and watch for these warning signs, which can appear anywhere from within an hour to a day or two later:
- Vomiting or diarrhoea — the most common sign of a dietary indiscretion, and of some toxins.
- Drooling, lip-licking or loss of appetite — often the first hint of nausea or something not sitting right.
- A tense, painful or bloated tummy, or a hunched posture — possible signs of pancreatitis or a blockage; take these seriously.
- Lethargy, weakness or wobbliness — can point to toxicity (onion, xylitol) rather than a simple upset.
- Restlessness, retching without producing anything, or a swollen belly — these can indicate an emergency and warrant an immediate vet call.
Mild tummy upset from a bit too much rich food often settles with a day of rest and small, bland meals. But if the signs are severe, worsening, or you know a genuinely toxic food was eaten, don't wait it out — call your vet.
A quick barbecue safety checklist
- Decide in advance exactly what your dog is allowed, and stick to it.
- Tell your guests the rule: the dog only has their own treats today.
- Keep skewers, corn cobs, bones and fatty offcuts in a secure bin, not an open one.
- Clear plates and glasses (including alcohol) rather than leaving them within reach.
- Set the dog up with their own treats, shade, water and a calm spot away from the grill.
- Save your vet's number and the Animal PoisonLine (01202 509000) in your phone before the day.
What to do if your dog eats something they shouldn't
Act quickly and don't wait for symptoms. If your dog eats something toxic — onion, grapes, chocolate, xylitol, a cooked bone or corn cob — contact your vet or an out-of-hours emergency vet straight away, and be ready to tell them what was eaten, how much, and when. In the UK you can also call the Animal PoisonLine on 01202 509000 for guidance. Don't try to make your dog sick unless a vet tells you to. When it comes to the dangerous foods above, it's always better to call early than to "wait and see".
Keeping barbecue day calm and cool
Food aside, remember that barbecues happen on hot days. Make sure there's shade and fresh water, keep an eye on your dog around the hot grill and skewers, and watch for signs of overheating. Our guide to keeping your dog cool in hot weather covers the essentials. A dog who's had their own treats, a cool spot and a bit of shade is a dog who can happily be part of the day — no emergency vet required.
Frequently asked questions
Can dogs eat sausages from the barbecue?
It's best to avoid them. Sausages are high in fat and salt and often contain onion or garlic powder, all of which are bad for dogs. A tiny piece of plain, well-cooked meat is a safer option, or better still, give your dog their own dog treats.
Can dogs eat burgers?
A small piece of a plain beef burger — no salt, seasoning, onion, cheese, bun or relish — is generally fine as an occasional treat. The additions are the problem, not the meat itself. Keep the portion small.
Why is corn on the cob dangerous for dogs?
The cob can cause a serious intestinal blockage if swallowed, which often requires surgery. Plain sweetcorn kernels off the cob are not toxic, but the cob itself should never be given to a dog and should be binned securely.
My dog ate an onion — what should I do?
Contact your vet or an emergency vet straight away, even if your dog seems fine, as symptoms of onion toxicity can be delayed. You can also call the Animal PoisonLine (01202 509000) in the UK. Note how much was eaten and when.
What human foods are safe for dogs in summer?
Plain cooked lean meat (no bones or seasoning), watermelon (no seeds or rind), cucumber, carrot, and a few blueberries or strawberries are all safe in moderation. Keep all treats and scraps to under about 10% of your dog's daily calories.
This guide is general information, not veterinary advice — if you're ever unsure, your vet is the best person to ask. Duke & Milo is an independent British dog brand, with free UK delivery on orders over £30.