Foods Dogs Should Never Eat

A clear guide to the most dangerous foods for dogs, why they’re risky, and what to do if your dog eats one by accident.

The Most Dangerous Foods for Dogs

Not all “people food” is safe for dogs. Some ingredients can cause stomach upset, while others may damage organs or even be life-threatening. Knowing which foods to avoid completely is one of the simplest ways to protect your dog.

This guide focuses on the human foods that should never be on your dog’s menu, common symptoms to watch for, and what to do if your dog manages to steal a bite.

Chocolate & Caffeine

Contain theobromine and caffeine, which can cause vomiting, tremors, heart problems and seizures.

Grapes & Raisins

Even small amounts can lead to kidney failure in some dogs. Never offer “just one”.

Onions & Garlic

Damage red blood cells and may cause anemia. Includes powders, sauces and seasonings.

Xylitol (Artificial Sweetener)

Found in sugar-free gum, candy, peanut butter and baked goods; can cause a dangerous drop in blood sugar.

Alcohol & Raw Dough

Affect the nervous system and can cause bloating, disorientation and breathing problems.

Cooked Bones

Splinter easily, increasing the risk of choking, tears in the gut or dangerous blockages.

Common Symptoms After Eating Dangerous Foods

  • Vomiting or diarrhea
  • Drooling, restlessness or pacing
  • Weakness, collapse or trouble walking
  • Tremors, shaking or seizures
  • Increased thirst or urination
  • Loss of appetite, hiding or unusual behavior

Symptoms may appear within minutes or take several hours, depending on the food and amount eaten.

What to Do If Your Dog Eats a Dangerous Food

  1. Stay calm and check what they ate. Note the food, amount and approximate time.
  2. Remove the rest of the food. Make sure your dog can’t reach any more.
  3. Call your vet or an emergency clinic. Share your dog’s weight and what they ate.
  4. Do not induce vomiting unless your vet tells you to. It can be risky with some toxins.
  5. Monitor closely. Keep an eye on breathing, behavior and bathroom habits.

Quick action and a phone call to your vet are often the most important steps you can take.

Safer Treat Alternatives

  • Plain dog biscuits or single-ingredient treats
  • Baby carrots or green beans
  • Apple slices without seeds
  • Plain boiled chicken pieces
  • Small amounts of xylitol-free peanut butter

When in doubt, stick to dog-specific treats or simple whole foods you know are safe.

Your dog trusts you with everything — including what ends up in their bowl. By keeping dangerous foods off the menu and choosing safer treats, you’re giving them the chance to live a longer, healthier and happier life. 💚

Looking for safer options? Read Safe Human Foods for Dogs or Best Dog Food for Sensitive Stomachs.