Can a dog safely eat potatoes? Tips and advice

Would you like to give your dog a piece of potato, but you're not sure if it's safe? Cooked potatoes can be a fine treat in small amounts. Raw potatoes are a different story: they contain solanine, a toxic compound that can cause serious health problems in dogs [1]. Potatoes also need to be prepared the right way. Never season them, fry them, or add butter. In this article, we look at whether dogs can eat potatoes, what risks come with them, and how to serve them safely. We also cover the difference between white and sweet potatoes, the potential health benefits, and the symptoms of potato poisoning in dogs.

Can dogs eat potatoes?

Yes, but only cooked potatoes, and only in limited amounts. Cooked potatoes without skin, salt, seasoning or butter are safe for dogs. Raw potatoes are the problem: they contain solanine, a substance that's toxic to dogs and can cause stomach upset and nerve damage, among other issues [1][2].

How much potato can a dog eat?

Small dogs (5–10 kg): up to 1 tablespoon of cooked potato at a time. Medium-sized dogs (10–25 kg): up to 2 tablespoons. Large dogs (25 kg and over): up to 3–4 tablespoons. Potatoes shouldn't make up more than 10% of a dog's daily calorie intake. Feeding too much can lead to weight gain and, over time, diabetes.

Are potatoes healthy for dogs?

Cooked potatoes contain vitamin C, vitamin B6, fibre and potassium, but they offer limited nutritional value for dogs overall. Dogs need a diet built mainly around protein and fat. Potatoes, by contrast, are mostly carbohydrate.

Nutritional value of cooked white potatoes (per 100 g)

Potatoes provide energy and fibre, but few nutrients dogs can't get more easily elsewhere.

Are raw potatoes dangerous for dogs?

Yes. Raw potatoes contain solanine, a toxin concentrated mainly in the skin, sprouts and green parts of the potato [1][2].

Symptoms of potato poisoning in dogs

Vomiting and diarrhoea. Difficulty breathing. Drowsiness and lethargy. Tremors or convulsions. If you notice any of these signs, contact a veterinarian right away [3].

Are sweet potatoes safer than ordinary potatoes?

Yes, sweet potatoes are safer and healthier for dogs than white potatoes. They contain less solanine and are rich in beta-carotene, fibre and vitamins A and C [2].

Benefits of sweet potatoes for dogs

Good for digestion: high in dietary fibre. Rich in antioxidants: supports the immune system. Lower toxicity risk: no solanine, unlike white potatoes. Sweet potatoes should always be cooked, mashed and served without the skin.

How do you safely prepare sweet potatoes for a dog?

Boil in water without salt or seasoning. Remove the skin to avoid solanine. Never bake or fry, and skip mashed potato made with butter, chips or crisps. Feed in moderation to avoid weight gain and blood sugar spikes. Mashed or chopped cooked potato is the safest way to give it to your dog.

Can dogs eat potato skins?

No. Potato skins can carry higher levels of solanine and should always be removed. The same goes for green potatoes and potatoes with sprouts, which can be especially toxic [1].

Can a dog eat chips or crisps?

No, fried or processed potatoes aren't good for dogs. Chips and crisps are loaded with fat, salt and spices, which can lead to stomach upset, pancreatitis and weight gain [3].

A safer alternative: boiled potato without any additives.

Can dogs be allergic to potatoes?

Yes. It's rare, but some dogs do have a food allergy or intolerance to potatoes.

Symptoms of a potato allergy

Itching and skin rashes. Ear infections. Digestive problems (diarrhoea, vomiting). If your dog shows any of these signs after eating potato, stop feeding it right away and check in with a veterinarian.

Are potatoes suitable for dogs with diabetes?

No. Dogs with diabetes shouldn't eat potatoes because of their high glycaemic index. Potatoes can cause sharp spikes in blood sugar, which is dangerous for a diabetic dog.

Alternatives for diabetic dogs: green leafy vegetables, pumpkin and carrots in moderation.

Conclusion

Dogs can eat cooked potatoes without the skin, salt or seasoning, but raw potatoes are toxic because of their solanine content. Sweet potatoes are a safer, more nutritious choice than white potatoes. Don't overdo the quantity: potatoes are high in carbohydrates and offer little essential nutrition for dogs. Skip potato skins, chips, crisps and raw potatoes altogether. If you're ever in doubt, or you notice signs of poisoning, contact a veterinarian.