Can a dog safely eat potatoes? Tips and advice

Would you like to give your dog a piece of potato, but are unsure whether it’s safe? Cooked potatoes can be a safe treat in small quantities, but raw potatoes contain solanine, a toxic substance that can cause serious health problems in dogs. Furthermore, potatoes must be prepared correctly and should never be seasoned or fried. In this article, we discuss in detail whether dogs can eat potatoes, the risks involved and how to serve them safely. We also look at the differences 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 in limited quantities. Cooked potatoes without skin, salt, seasoning or butter are safe for dogs. Raw potatoes contain solanine, a substance that is toxic to dogs and can cause stomach problems and nerve damage, amongst other things.

How much potato can a dog eat?

• Small dogs (5–10 kg): up to 1 tablespoon of cooked potatoes 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 should make up no more than 10% of a dog’s daily calorie intake. Excessive consumption can lead to weight gain and diabetes.

Are potatoes healthy for dogs?

Cooked potatoes contain vitamins C and B6, fibre and potassium, but they offer limited nutritional value for dogs. Dogs need a diet consisting mainly of proteins and fats, whereas potatoes mainly provide carbohydrates.

Nutritional value of cooked white potatoes (per 100 g)

Nutrient	Amount
Calories	87 kcal
Carbohydrates	20 g
Protein	2 g
Fat	0.1 g
Fibre	1.8 g
Potassium	379 mg
Vitamin C	13 mg

Potatoes provide energy and fibre, but contain few essential nutrients that dogs cannot obtain from other sources.

Are raw potatoes dangerous for dogs?

Yes. Raw potatoes contain solanine, a toxin found mainly in the skin, sprouts and green parts of the potato.

Symptoms of potato poisoning in dogs

• Vomiting and diarrhoea
• Difficulty breathing
• Drowsiness and lethargy
• Tremors or convulsions

If you notice these symptoms, you should contact a veterinarian immediately.

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.

Benefits of sweet potatoes for dogs

• Good for digestion: high in dietary fibre.
• Rich in antioxidants: supports the immune system.
• Lower risk of toxicity: no solanine, unlike in white potatoes.

Sweet potatoes must 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: no mashed potatoes with butter, chips or crisps
• Feed in moderation to prevent obesity 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 may contain elevated levels of solanine and must always be removed. This also applies to green potatoes and potatoes with sprouts, which can be particularly toxic.

Can a dog eat chips or crisps?

No, fried or processed potatoes are unhealthy for dogs. Chips and crisps contain a lot of fat, salt and spices, which can lead to stomach upsets, pancreatitis and weight gain. Alternative: boiled potato without any additives is a safer choice.

Can dogs be allergic to potatoes?

Yes, although rare, some dogs may 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 allergic symptoms after eating potatoes, stop feeding them immediately and consult a veterinarian.

Are potatoes suitable for dogs with diabetes?

No, dogs with diabetes should not eat potatoes due to their high glycaemic index. This can cause sharp spikes in blood sugar levels, which is dangerous for diabetic dogs. Alternatives for diabetic dogs:

• Green leafy vegetables
• Pumpkin
• Carrots (in moderation)

Conclusion

Dogs may eat cooked potatoes without the skin, salt or seasoning, but raw potatoes are toxic due to their solanine content. Sweet potatoes are a safer and more nutritious option than white potatoes. Do not overdo the quantity, as potatoes are high in carbohydrates and provide little essential nutrition for dogs. Avoid potato skins, chips, crisps and raw potatoes completely. If in doubt or if symptoms of poisoning occur, always consult a veterinarian.