What Human Foods Are Toxic to Dogs? A Complete Guide

We all love sharing food with our dogs — but some of the most common foods in your kitchen can be deadly to dogs. Knowing what to keep out of reach could save your dog's life. Here's a complete guide to human foods that are toxic to dogs.

Foods That Are Toxic to Dogs

1. Chocolate

Chocolate contains theobromine and caffeine, both of which dogs cannot metabolise effectively. Dark chocolate and baking chocolate are the most dangerous. Symptoms include vomiting, diarrhoea, tremors, seizures, and in severe cases, death. There is no safe amount of chocolate for dogs.

2. Grapes and Raisins

Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxic compound is still unknown, which makes it even more dangerous — some dogs react to tiny amounts while others seem unaffected. Don't risk it.

3. Onions, Garlic, and Leeks

All members of the allium family — onions, garlic, leeks, and chives — are toxic to dogs. They damage red blood cells and can cause haemolytic anaemia. Cooked, raw, or powdered forms are all dangerous. Be especially careful with gravies, stocks, and sauces that often contain onion or garlic.

4. Xylitol (Artificial Sweetener)

Xylitol is found in sugar-free chewing gum, some peanut butters, sweets, and baked goods. It causes a rapid drop in blood sugar and can lead to liver failure in dogs. Always check the label before giving your dog any human food or peanut butter.

5. Macadamia Nuts

Macadamia nuts can cause weakness, vomiting, tremors, and hyperthermia in dogs. Even a small amount can make a dog seriously ill.

6. Avocado

Avocado contains persin, which can cause vomiting and diarrhoea in dogs. The large pit is also a choking hazard and can cause intestinal blockages.

7. Alcohol

Even small amounts of alcohol can cause vomiting, disorientation, breathing difficulties, and coma in dogs. Never give your dog alcohol, even as a joke.

8. Cooked Bones

Cooked bones splinter easily and can cause choking, internal punctures, and blockages. Raw bones are generally safer but should always be given under supervision.

9. Caffeine

Coffee, tea, energy drinks, and some medications contain caffeine, which is toxic to dogs and can cause rapid heart rate, tremors, and seizures.

10. Corn on the Cob

While corn itself isn't toxic, the cob is a common cause of intestinal blockages in dogs and often requires emergency surgery.

What to Do If Your Dog Eats Something Toxic

• Contact your vet or an emergency animal poison helpline immediately
• Note what your dog ate, how much, and when
• Do not induce vomiting unless specifically instructed by a vet
• Act fast — the sooner treatment begins, the better the outcome

Safe Treats to Give Your Dog Instead

Stick to dog-safe snacks like carrots, apple slices (no seeds), plain cooked chicken, or purpose-made dog treats. Your dog will love them just as much!

Shop Safe Dog Treats at PawCentral

Keep your dog happy and safe with our range of vet-approved, dog-safe treats and chews. Visit PawCentral and shop treats you can feel good about giving.