Can dogs eat potatoes?
✓ Reviewed against PDSA, Blue Cross & Animal PoisonLine guidance · Last updated: 2026-06-17
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The full picture
Like tomatoes, potatoes are nightshades and contain solanine — concentrated in the skin, sprouts, and any green parts. Cooking destroys much of the toxin, which is why plain boiled, baked, or steamed potato flesh is generally safe. Raw potato, green potato, or sprouted potato should never be fed. Chips, crisps, and roast potatoes cooked with salt, oil, and seasonings are separate issues. A few pieces of plain cooked potato mixed into a meal is fine; a high-potato diet isn't ideal.
If your dog ate more than a safe amount
For a small accidental taste, watch for vomiting, diarrhoea, or signs of discomfort over the next few hours. For a large amount or if your dog is small or has existing health conditions, call your vet. When in doubt, call the ASPCA Animal Poison Control Center on (888) 426-4435.
Risks to watch for
- Solanine poisoning from raw or green potato
- Obesity from high-carb forms
- Salt and fat from processed potato foods
Potential benefits
- Some vitamins and fiber when cooked plainly
Safe portion size
A small amount of plain cooked potato occasionally.
Safer alternatives
- Cooked sweet potato
- Carrots
- Butternut squash
Does size or breed matter?
No specific toxicity concern from potatoes itself at any size — this is mainly a portion and preparation question. Always serve plain and cooked or chopped small where relevant, since whole or large raw pieces are a bigger choking risk for small and toy breeds than for large dogs. Introduce any new vegetable gradually, as too much fibre too quickly can cause loose stools regardless of the dog's size.