Foods Dogs Can't Eat: The Toxic Food List Every Owner Needs (2026)
Dogs are opportunists — they will happily hoover up whatever falls on the kitchen floor, and a surprising number of everyday human foods are genuinely dangerous to them. Some cause nothing worse than an upset stomach, but others can lead to organ failure or death from a small amount. This guide lists the foods dogs can't eat, explains why each is harmful, and — most importantly — tells you exactly what to do if your dog gets into something toxic. When in doubt, treat it as an emergency and call your vet.
The toxic food list at a glance
The table below covers the most common household hazards. 'Severity' is a rough guide only — the real risk depends on your dog's size, the amount eaten, and the specific product. A tiny dog and a large dog eating the same amount face very different risks, so never rely on a chart to decide whether something is 'fine.'
| Food | Why it's dangerous | Severity |
|---|---|---|
| Chocolate | Contains theobromine and caffeine, which dogs metabolise slowly. Causes vomiting, racing heart, tremors and seizures. Dark and baking chocolate are far more toxic than milk chocolate. | High |
| Xylitol / birch sugar | A sweetener in sugar-free gum, mints, some peanut butters, baked goods and toothpaste. Triggers a rapid, dangerous drop in blood sugar and can cause liver failure. Toxic in very small amounts. | Very high |
| Grapes & raisins | Can cause sudden kidney failure. The toxic dose is unpredictable — some dogs react to just a few — so all grapes, raisins, currants and sultanas should be treated as dangerous. | Very high |
| Onions, garlic, leeks & chives | All members of the allium family damage red blood cells and can cause anaemia. Cooked, raw or powdered (including in leftovers and baby food) all count. Effects can be delayed by days. | High |
| Macadamia nuts | Cause weakness, vomiting, tremors and overheating, typically within 12 hours. Rarely fatal on their own but very distressing and often needs veterinary care. | Moderate–high |
| Alcohol | Found in drinks, raw dough and some desserts. Dogs are highly sensitive — causes vomiting, disorientation, dangerously low body temperature and breathing problems. | High |
| Caffeine | Coffee, tea, energy drinks and coffee grounds. Similar to chocolate — causes agitation, racing heart, tremors and seizures. | High |
| Raw yeast bread dough | Rises in the warm stomach, causing painful bloating, and ferments into alcohol. A double danger of physical obstruction plus alcohol poisoning. | High |
| Cooked bones | Splinter easily and can cause choking, mouth injuries, or a punctured or blocked gut. Cooked poultry bones are especially risky. | Moderate–high |
| Fatty foods & trimmings | Rich, greasy scraps (fat, drippings, fried food) can trigger pancreatitis — a painful and sometimes serious inflammation of the pancreas — particularly in prone breeds. | Moderate |
| Avocado | Contains persin. Usually only a mild stomach upset for dogs, but the large pit is a real choking and obstruction hazard. Keep guacamole (often with onion and garlic) away entirely. | Mild |
| Salt & very salty snacks | Large amounts (crisps, pretzels, playdough, table salt) can cause excessive thirst, vomiting and, in extreme cases, sodium poisoning. | Moderate |
| Cherry, apricot & peach pits; apple seeds | Pits are a choking/obstruction risk and contain compounds that release cyanide. Remove all pits and cores before sharing fruit. | Moderate |
This list is not exhaustive. New products (especially anything sweetened) can contain hidden hazards like xylitol, so read labels and, when unsure, keep it out of reach.
What to do if your dog ate something toxic
Act quickly and calmly. The window in which treatment is easiest is often in the first hour or two — so don't wait to 'see how they go.'
- Call your vet immediately, or an emergency vet clinic if it's out of hours. Describe what was eaten, roughly how much, and when.
- In the US, contact a poison control line for pets: the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661. Both are staffed by experts around the clock. (A consultation fee may apply.)
- Have the packaging ready — the exact product, ingredient list, and strength (for example, the cocoa percentage of chocolate) help the vet judge the risk.
- Do not make your dog vomit unless a vet tells you to. For some substances vomiting causes more harm, and home remedies can be dangerous. Follow professional instructions only.
- Watch for symptoms such as vomiting, diarrhoea, drooling, tremors, weakness, collapse or seizures — but remember some poisons act with a delay, so a normal-looking dog can still be at risk.
For anything on the 'very high' or 'high' list — chocolate, xylitol, grapes/raisins, onions/garlic — call for advice even if your dog seems fine. It is always better to make the call and be reassured than to wait.
Foods generally safe in moderation
Plenty of plain, dog-appropriate human foods are fine as occasional treats, provided they're unseasoned, unsweetened, and free of the ingredients above. Keep treats to a small share of daily calories, and introduce anything new slowly.
- Plain cooked chicken, turkey or lean beef (no bones, skin, or seasoning)
- Carrot, cucumber and green beans
- Plain cooked pumpkin or sweet potato
- Apple or banana slices (no seeds, no core)
- Blueberries and small amounts of watermelon (no seeds or rind)
- Plain rice and plain cooked egg
'In moderation' matters: even safe foods can upset a sensitive stomach or add unwanted calories. A balanced dog food should still be the core of the diet — see our guide to choosing a good puppy food.
The bottom line
The safest habit is simple: don't feed table scraps, store hazardous foods out of reach, and keep the poison-control number saved in your phone. If your dog eats something on this list, don't panic — but don't wait either. Call your vet or a pet poison line straight away, because fast action is what makes the biggest difference.
Frequently asked questions
My dog just ate chocolate — what should I do?
Call your vet or a pet poison control line right away, even if your dog seems fine. Note how much was eaten, what type (dark and baking chocolate are far more toxic than milk), and when. In the US you can reach the ASPCA Animal Poison Control Center on (888) 426-4435 or the Pet Poison Helpline on (855) 764-7661. Don't try to make your dog vomit unless a professional tells you to.
How much of a toxic food is dangerous for a dog?
It varies enormously by the food, your dog's size, and the specific product — and for some, like grapes, raisins and xylitol, even small amounts can be dangerous. Because the toxic dose is often unpredictable, don't try to work out whether an amount is 'safe' on your own. Treat any ingestion of a listed food as a reason to call your vet or a poison control line for advice.
What is xylitol and why is it so dangerous for dogs?
Xylitol (sometimes labelled 'birch sugar') is a sweetener found in sugar-free gum, mints, some peanut butters, baked goods and even toothpaste. In dogs it can cause a rapid, dangerous drop in blood sugar and, at higher doses, liver failure — and it's toxic in very small amounts. Always check peanut butter and 'sugar-free' labels before sharing, and keep these products well out of reach.
Can dogs eat a little bit of onion or garlic?
It's best to avoid them entirely. Onions, garlic, leeks and chives all damage a dog's red blood cells and can cause anaemia, and the effects can be delayed by days. This includes cooked and powdered forms hidden in leftovers, sauces, and baby food. If your dog has eaten a food containing onion or garlic, contact your vet for advice.
Which human foods are safe to give my dog?
Plain, unseasoned options are usually fine as occasional treats — cooked plain chicken, carrot, green beans, plain pumpkin, and small amounts of apple or banana without seeds or cores. Keep treats to a small share of daily calories and introduce new foods slowly. When in doubt about a specific food or your dog's health, check with your veterinarian.
⚕️ A note on advice: This article is general guidance to help you make informed decisions — it is not a substitute for professional veterinary advice. Always consult your vet about your dog's individual health and needs.
Trusted resources for further reading
We recommend these respected organizations for authoritative, vet-reviewed information: American Kennel Club (AKC), ASPCA, and the American Veterinary Medical Association (AVMA).