Are Potatoes Poisonous to Dogs?

The toxic compounds in potatoes:

• Solanine (a glycoalkaloid)
• Chaconine and related glycoalkaloids
• Highest in raw, green-skinned, sprouted potatoes, potato skins, and the leaves/stems of the potato plant

If your dog ate potatoes, watch for:

• •Vomiting
• •Diarrhea
• •Lethargy
• •Muscle weakness
• •Lack of coordination / confusion
• •Gastrointestinal upset (gas, bloating, cramps)
• •In large amounts: neurologic problems, coma, and death

Are raw potatoes dangerous for dogs?

Yes. Raw potatoes contain solanine, a glycoalkaloid toxin from the nightshade family, which is highest in raw, green, and sprouted potatoes. Eating raw potato can cause vomiting, diarrhea, lethargy, and muscle weakness, and large amounts can affect the nervous system. Avoid feeding raw potato; cook it plainly first.

Can dogs eat plain cooked potatoes?

In moderation, yes. Cooking substantially lowers solanine, so plain boiled, baked, or mashed potato with no butter, salt, garlic, onion, or seasoning is generally safe as an occasional treat. Keep it to a small portion (treats should be under ~10% of daily calories) since potatoes are starchy and can cause GI upset in large amounts.

What about green potatoes, sprouts, and skins?

Avoid them. Green-skinned, sprouted potatoes and the potato plant's leaves and stems have the highest glycoalkaloid levels and are the most likely to cause solanine poisoning. Remove any green parts and sprouts, and do not feed green skins. If your dog eats green or raw potato and shows vomiting, diarrhea, weakness, or incoordination, contact your vet or the Pet Poison Helpline (855-764-7661).

• American Kennel Club (AKC) - Can Dogs Eat Potatoes?
• PetMD - Can Dogs Eat Potatoes? (vet-reviewed)

Last updated 2026-06-25