Chronic Diseases & Special Conditions

Toxic Foods for Dogs: The Complete List

Chocolate, grapes, onions, xylitol – learn about the most common and dangerous food poisonings for dogs. Keep your pet safe!

2 min readReviewed: Oct 16, 2026

When to see a vet IMMEDIATELY

  • •Blood in stool or vomit
  • •Lethargy, not drinking, or not eating for 24+ hours
  • •Repeated vomiting, especially if water won't stay down
  • •Swollen or painful abdomen, whimpering
  • •Diarrhea lasting more than 3 days, or worsening symptoms

This article is informational and does not replace veterinary examination.

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Toxic Foods for Dogs

Deadly or Severely Toxic

  • Highly toxic: Chocolate
  • Highly toxic: Grapes, Raisins
  • Highly toxic: Onions, Garlic, Leeks
  • Highly toxic: Xylitol
  • Highly toxic: Macadamia Nuts
  • Risky: Avocado
  • Highly toxic: Alcohol
  • Highly toxic: Caffeine
  • Risky: Raw Poppy Seeds
  • Highly toxic: Raw Yeast Dough

🚨 Chocolate Theobromine. Dark chocolate is much more toxic. Symptoms: vomiting, heart arrhythmia, seizures. Even a small amount can be dangerous for small dogs.

🚨 Grapes, Raisins Can cause kidney failure. Even a few can be fatal.

🚨 Onions, Garlic, Leeks Damages red blood cells. Toxic in cooked, fried, or powdered forms. Has a cumulative effect.

🚨 Xylitol Sweetener found in gum, cookies, toothpaste. Causes hypoglycemia, liver damage. Even a tiny amount can be fatal.

🚨 Macadamia Nuts Vomiting, weakness, hyperthermia, joint pain.

⚠️ Avocado Persin: large amounts can cause GI upset (dogs are more resistant than many other animals). High fat content risks pancreatitis. The large pit is a choking and intestinal blockage hazard.

🚨 Alcohol Even small amounts can be poisonous.

🚨 Caffeine Coffee, soda, energy drinks. Causes heart arrhythmia, seizures.

⚠️ Raw Poppy Seeds May contain opiate alkaloids (more in raw, unripe poppy). Larger amounts can cause lethargy and an unsteady gait; see a vet if in doubt. Poppy seeds used in baking (dried, cooked) are harmless.

🚨 Raw Yeast Dough Continues to rise in the warm stomach. Produces ethanol and can cause stomach bloat.

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Dangerous, But Not Always Fatal

  • Raw meat (Salmonella risk)
  • Cooked bones (splintering risk)
  • Large quantities of dairy products
  • Salty, spicy foods
  • Sugary, fatty sweets (cakes, cream): fat can trigger pancreatitis; sugar-free versions may contain xylitol
  • Chili peppers
  • Baked goods with nuts or seeds

Safe in Moderation

  • Apples (without seeds)
  • Bananas
  • Strawberries, blueberries
  • Carrots, broccoli (cooked)
  • Pumpkin (unseasoned)
  • Watermelon (without seeds)
  • Cooked chicken, turkey, fish
  • Plain yogurt in small amounts

What to Do in Case of Poisoning?

  1. Contact your vet immediately (24/7 emergency service)
  2. Bring the packaging of the ingested substance
  3. Estimate the quantity and time of ingestion
  4. Never induce vomiting at home unless instructed by a vet

Prevention

  • Store chocolate and xylitol products out of reach
  • Inform guests about dog-safe practices
  • Use a dog-proof trash can
  • Be vigilant about found food scraps during walks

References

  1. 1.American Veterinary Medical Association — Household hazards: foods and substances that are toxic to pets. AVMA, 2024. https://www.avma.org/resources-tools/pet-owners/petcare/household-hazards (accessed: 2026-09-10)
  2. 2.Eubig PA, Brady MS, Gwaltney-Brant SM, Khan SA, Mazzaferro EM, Morrow CMK — Acute renal failure in dogs after the ingestion of grapes or raisins: a retrospective evaluation of 43 dogs (1992–2002). Journal of Veterinary Internal Medicine 19(5):663–674, 2005. https://doi.org/10.1111/j.1939-1676.2005.tb02744.x (accessed: 2026-09-10)
  3. 3.Dunayer EK, Gwaltney-Brant SM — Acute hepatic failure and coagulopathy associated with xylitol ingestion in eight dogs. Journal of the American Veterinary Medical Association 229(7):1113–1117, 2006. https://doi.org/10.2460/javma.229.7.1113 (accessed: 2026-09-10)
  4. 4.Salgado BS, Monteiro LN, Rocha NS — Allium species poisoning in dogs and cats. Journal of Venomous Animals and Toxins including Tropical Diseases 17(1):4–11, 2011. https://doi.org/10.1590/S1678-91992011000100002 (accessed: 2026-09-10)
  5. 5.Noble PJM, Newman J, Wyatt AM, Radford AD, Jones PH — Heightened risk of canine chocolate exposure at Christmas and Easter. Veterinary Record 181(25):679, 2017. https://doi.org/10.1136/vr.104762 (accessed: 2026-09-10)

This is general information and does not replace a veterinary diagnosis.

Reka Fazekas-Birizdo

This guide was compiled based on the expert input of Reka Fazekas-Birizdo canine nutritionist.

Certified Canine Nutritionist

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