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Dogs can eat potatoes, but they’re best when fed in moderation. Boiled or baked potatoes can offer a variety of health benefits, like immune system support. But too many helpings can lead to adverse conditions, such as obesity. Additionally, potatoes with green spots should be avoided altogether, as they can be toxic.
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Your dog’s body is designed to get most of its nutrients from animal-based proteins, so if you decide to feed them potatoes, do so as a treat. For more ways to bolster your dog’s health or enrich their meals, consult a veterinarian.
Are Potatoes Safe for Dogs?
Dr. Patricia Kennedy, founder and director at Jefferson Animal Hospital in Louisville, Kentucky, has been a veterinarian for more than four decades. She explains that while potatoes are a great source of fiber and aid with digestion, there are a few things to know before scraping mashed potatoes into your dog’s bowl.
“Cooked potatoes are fine, but not with tons of butter, which can trigger pancreatitis,” she shares. “Just plain mashed or soft, cooked potatoes are fine in small amounts without the butter and spices. Potato skins are okay too, but not if they are green.”
What’s wrong with green potatoes? When exposed to light, some varieties of potatoes will develop green spots, indicating an increase in solanine, a naturally occurring toxin found in members of the nightshade family. If your dog eats a green potato (say, one from the trash), your next steps may depend on your dog’s size, how much they consumed, and whether they have any adverse symptoms.
“If your pet is vomiting, [has] diarrhea, shows lethargy, or [has] muscle weakness, find a veterinarian immediately,” advises Dr. Kennedy.
In the event of a suspected poisoning, contact your local emergency veterinarian or the Pet Poison Helpline (855-764-7661).
Nutritional Benefits of Potatoes for Dogs
There’s a reason why the humble spud is a staple ingredient in many dishes; it’s a great source of nutrition, energy, and comfort. White potatoes, for example, offer these nutrients to dogs:
- Vitamin C, a powerful antioxidant that works to reduce inflammation and the effects of aging, such as cognitive decline
- Vitamin B6, a water-soluble vitamin that strengthens multiple bodily systems
- Iron, which prevents anemia and supports red blood cells
- Magnesium, which helps with the absorption of other key nutrients, such as sodium, potassium, and calcium
- Fiber, which regulates digestion and encourages good stool quality
- Protein, one of the most essential macronutrients responsible for immune system function, coat health, and sating hunger
If your dog eats kibble or wet food made in accordance with the standards set by the Association of American Feed Control Officials (AAFCO), they should already be receiving all the necessary vitamins and nutrients through their regularly portioned meals.
“[Our vet clinic] always encourages our pet owners to feed a balanced diet which can include potatoes, other legumes, or vegetables of all varieties,” says Dr. Kennedy.
Can Dogs Eat Sweet Potatoes?
Sweet potatoes are considered a healthier option than white potatoes for multiple reasons. For example, they’re more nutritious than other spud varieties, containing potassium, vitamin A, and calcium – in addition to the health benefits listed above.
“Sweet potatoes are great when they are soft and well cooked,” says Dr. Kennedy. “They’re an excellent source of fiber and can prevent constipation. [Our vet clinic] sometimes tells our clients to add small amounts of canned sweet potatoes to their dogs’ dry food to help make the stool soft for easier passage.”
If you’d like to add a side of sweet potatoes to your dog’s kibble, start with a small amount to prevent issues with digestion, like diarrhea or upset stomach. You may also turn your attention to treats, dog food toppers, and kibble formulated with potatoes. These could be an excellent way to introduce potatoes to your dog’s diet in appropriate amounts for their breed and size.
How to Feed Potatoes to Your Dog
As noted, cooked, unseasoned potatoes can enrich your dog’s diet, encourage digestion, and make mealtimes more exciting. Dr. Kennedy emphasizes some important tips.
“If a pet owner tries to feed a homemade diet and adds cooked white potatoes, make sure they are not green, [as these have] toxins (oxalates or solanine) that can be dangerous for any pet,” she says. “Potato skins are okay too if they’re not green. Cooked potatoes also have to be cooked sufficiently to be mashed so the pet doesn’t choke on a piece of raw or half-cooked potato.”
The best way to feed your dog potatoes depends on their individual profile. For instance, if you have a senior Chihuahua who needs soft food, they could gain much-needed joint and soft-tissue support from mashed, unseasoned sweet potatoes. On the other hand, if you have an energetic Border Collie puppy, putting small pieces of cooked white potato inside a puzzle toy could provide both nutritional enrichment and entertainment.
Consult a Veterinary Nutritionist to Learn More
It’s possible to have too much of a good thing, and that certainly applies to foods like French fries, hashbrowns, and other potato-based dishes.
“The potatoes themselves will not lead to obesity or diabetes in moderation,” says Dr. Kennedy. “That’s why it’s important to keep that in mind when feeding your dog any kind of potato.”
To ensure that your dog reaps the full benefits of potatoes (and maintains a healthy weight), it’s important to understand what constitutes an appropriate amount. Your pet’s healthcare team is the best source of information when looking for ways to supplement their meals, including whether potatoes would make a good addition.
Key Takeaways
- Dogs can eat cooked potatoes in moderation when served plain.
- Raw or green potatoes are unsafe and potentially toxic.
- Sweet potatoes are a nutritious option when fully cooked.
- Potatoes should be treats, not meal replacements.
- Always consult your veterinarian before making diet changes.
Frequently Asked Questions
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Can dogs eat mashed potatoes?
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Yes, as long as they’re plain—no butter, milk, salt, or seasonings.
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Are potato skins safe for dogs?
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Only if they’re cooked and not green. Green skins should be avoided.
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How often can dogs eat potatoes?
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Occasionally. Potatoes should make up only a small portion of your dog’s overall diet.
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Can dogs eat mashed potatoes?
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Yes, as long as they’re plain—no butter, milk, salt, or seasonings.
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Are potato skins safe for dogs?
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Only if they’re cooked and not green. Green skins should be avoided.
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How often can dogs eat potatoes?
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Occasionally. Potatoes should make up only a small portion of your dog’s overall diet.