Foods Toxic to Dogs: The Complete List
A vet-reviewed guide to every food that can harm your dog — and what to do in an emergency.
If your dog has eaten a toxic food and is showing symptoms, contact your veterinarian or an emergency animal clinic immediately. Do not wait to see if symptoms develop.
High Severity — Call Your Vet Immediately
Chocolate
Contains theobromine and caffeine which dogs cannot metabolize. Dark chocolate and baking chocolate are the most dangerous — even small amounts can cause serious harm. Milk chocolate is less concentrated but still toxic in larger quantities.
Symptoms:
Vomiting, diarrhea, increased thirst, restlessness, racing heart, muscle tremors, seizures.
⚠ As little as 20mg of theobromine per kg of body weight can cause symptoms. A 10kg dog can be affected by just 50g of dark chocolate.
Grapes & Raisins
Can cause sudden, severe kidney failure. The exact toxic compound is unknown — there is no safe dose. Even a single grape has caused kidney failure in some dogs.
Symptoms:
Vomiting, lethargy, loss of appetite, abdominal pain, decreased urination, kidney failure within 24–72 hours.
⚠ Raisins are more concentrated than grapes and therefore more dangerous by weight.
Onions, Garlic, Leeks & Chives
All Allium family members damage red blood cells, causing hemolytic anemia. Garlic is approximately five times more toxic than onions. Cooked, raw, and powdered forms are all dangerous.
Symptoms:
Weakness, lethargy, pale gums, reduced appetite, reddish urine. Symptoms may be delayed 3–5 days.
⚠ Garlic powder and onion powder are concentrated — baby food, soups, and seasoned meats often contain them.
Xylitol (Artificial Sweetener)
Found in sugar-free gum, some peanut butters, toothpaste, vitamins, and baked goods. Causes a rapid dangerous drop in blood sugar and can lead to liver failure.
Symptoms:
Vomiting, weakness, coordination problems, seizures, collapse. Can appear within 15–30 minutes.
⚠ Always check peanut butter labels for xylitol before giving it to your dog.
Alcohol
Affects dogs far more severely than humans. Even small amounts from beer, wine, spirits, or foods containing alcohol can cause dangerous drops in blood sugar, blood pressure, and body temperature.
Symptoms:
Vomiting, disorientation, breathing difficulty, low body temperature, seizures, coma.
Caffeine
Coffee, tea, energy drinks, some medications, and chocolate all contain caffeine. Dogs are much more sensitive to caffeine than humans.
Symptoms:
Restlessness, rapid breathing, heart palpitations, muscle tremors, seizures.
Medium Severity — Monitor Closely
Avocado
Contains persin, which can cause vomiting and diarrhea. The pit is also a choking hazard. The flesh is less toxic than the leaves or skin, but best avoided entirely.
Macadamia Nuts
Can cause weakness, hyperthermia, vomiting, tremors, and depression. Symptoms usually appear within 12 hours of ingestion.
Stone Fruit Pits (Peach, Plum, Cherry)
The pits contain cyanogenic glycosides which release cyanide when chewed. The flesh itself is generally safe — keep pits away from dogs.
Salt & Salty Snacks
Large amounts cause sodium ion poisoning. Chips, pretzels, and salted popcorn are common culprits. Symptoms include excessive thirst, vomiting, diarrhea, tremors, seizures.
Nutmeg
Contains myristicin, toxic in large quantities. Found in baked goods, eggnog, and sauces. Symptoms include disorientation, increased heart rate, high blood pressure, seizures.
Lower Severity — Avoid But Not Always an Emergency
Dairy Products
Many dogs are lactose intolerant. Milk, cheese, and ice cream can cause digestive upset. Not life-threatening but uncomfortable.
Raw Yeast Dough
Expands in the stomach and produces alcohol as a byproduct. Cooked bread in small amounts is generally safe.
Cooked Bones
Cooked bones splinter and can cause internal punctures or blockages. Raw bones carry risks too — supervise always.
Corn on the Cob
The cob (not the kernels) can cause intestinal blockage. Kernels alone are safe in small amounts.
What to Do If Your Pet Eats Something Toxic
Stay calm and follow these steps immediately:
- 1Stay calm — panicking makes it harder to act quickly
- 2Identify what and how much was eaten
- 3Call your vet or emergency animal clinic immediately — do not wait for symptoms
- 4Do not induce vomiting unless specifically instructed by a vet
- 5Bring the packaging if available — ingredient lists help vets act faster
- 6Note the time of ingestion — this helps determine treatment urgency
Monitor Your Dog After a Scare
If your dog has recovered from eating something harmful, monitor their body condition in the weeks following. PawScan's AI photo analysis can help you track body condition changes and spot early signs of weight loss or coat deterioration.
Scan your pet nowFrequently Asked Questions
Can dogs eat peanut butter?▾
Most peanut butter is safe, but always check the label for xylitol — some brands use it as a sugar substitute and it is highly toxic to dogs. Choose plain, unsalted peanut butter with no added sweeteners.
What if my dog ate a tiny amount of chocolate?▾
Even small amounts warrant a call to your vet. The risk depends on the type of chocolate, how much was eaten, and your dog's weight. Your vet can calculate the theobromine dose and advise whether to monitor at home or come in.
Are all grape varieties dangerous?▾
Yes — all grape varieties including red, green, seeded, seedless, fresh, and dried forms (raisins, currants, sultanas) should be considered toxic. There is no known safe variety or safe dose.
Can dogs eat fruit?▾
Many fruits are safe — apples (without seeds), blueberries, watermelon (without rind or seeds), and bananas are all fine in moderation. Always avoid grapes, cherries with pits, and citrus in large amounts.
How quickly do toxic food symptoms appear?▾
It depends on the toxin. Xylitol symptoms can appear within 15–30 minutes. Grape and raisin kidney damage may take 24–72 hours. Chocolate symptoms typically appear within 6–12 hours of ingestion.
This article is for educational purposes only. Always consult a licensed veterinarian for medical advice specific to your pet.