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Can Dogs Eat Sweet Potatoes?

Whether dogs can eat sweet potatoes, how to cook and serve them, how much fits in a day, which holiday dishes to keep away, and what the FDA's DCM investigation found.

Choolip Team3 Nov 2026 · 7 min read

A beagle eats its dinner with a few cubes of plain cooked sweet potato mixed in, showing how dogs can eat sweet potatoes

Yes, dogs can eat sweet potatoes, cooked and plain, as an occasional extra. The ASPCA lists the sweet potato plant as non-toxic to dogs, and its Thanksgiving advice suggests mixing a few pieces into your dog's usual dinner if you want to share.

The catch is everything that goes on top. Butter, sugar, marshmallows and seasonings turn a safe vegetable into a risky dish, and WSAVA's guidance keeps all extras under 10% of daily calories.

Here's how to serve it, how much fits, and what the FDA's dog food investigation found about sweet potatoes.

Are sweet potatoes safe for dogs?

The plant itself is. The ASPCA's poison control plant list gives the sweet potato (Ipomoea batatas) as non-toxic to dogs, cats and horses, and lists no toxic principles.

A surprising detail from the same entry: the ASPCA files sweet potato under Convolvulaceae, the morning glory family.

That entry also covers the leafy sweet potato vine grown in gardens and planters, so a nibble of the ornamental plant appears on the same non-toxic listing.

The ASPCA's Thanksgiving page sets the tone for the food itself. It recommends sticking to your pet's normal diet, and if you do share, mixing some pieces of turkey, sweet potatoes and green beans into their usual dinner.

Cooked or raw: how should I serve sweet potato to my dog?

Cooked, plain and in small pieces. The Merck Veterinary Manual reports that dogs digest properly cooked starches with more than 90% efficiency, and it names the starch in raw potatoes as a type that resists digestion.

Merck doesn't discuss raw sweet potato specifically, and we found no approved source that does. Its figure applies to cooked starch, which is a good reason to cook it first.

Bake, boil or steam it with nothing added: no butter, salt, sugar, spices or toppings.
Let it cool, then cut it into pieces that suit your dog's size. WSAVA advises that any extra be an appropriate size and shape to reduce the risk of choking.
Mix it into the usual meal, as the ASPCA suggests, or offer a piece on its own.
Count it as part of the day's extras (more on that below).

What about sweet potato casserole, pie or fries?

This is where the ASPCA's warnings come in. It says that onions and garlic are both prevalent in Thanksgiving dishes and can be toxic to pets, and WSAVA lists onions, garlic and chives among toxic food ingredients for dogs.

Desserts carry their own risk. The ASPCA says desserts containing artificial sweeteners, like xylitol, can cause low blood sugar, liver damage or even death.

Salted fries and chips add sodium. The ASPCA notes that excessive salt intake can produce increased thirst and urination, and sometimes abnormal electrolytes in the blood, depending on the amount eaten.

WSAVA adds that human food and table scraps can be unhealthy for dogs. Keep your dog's share to plain sweet potato, set aside before anything else goes in.

Is sweet potato good for dogs?

It can be a nutritious extra, though it adds nothing a complete and balanced dog food doesn't already provide. WSAVA's guidance is that every dog needs a complete and balanced diet, and extras never replace a meal.

Its standout nutrient is beta-carotene. USDA's FoodData Central, the US government's food composition database, lists 11,500 micrograms of beta-carotene per 100 g of baked sweet potato. Baked white potato flesh lists none.

Here's the interesting part for dog owners. The Merck Veterinary Manual explains that beta-carotene is a plant precursor of vitamin A, and that dogs can readily use plant and animal sources of vitamin A. Cats cannot convert beta-carotene, so this is a dog-side advantage.

Per 100 g (USDA)	Sweet potato, baked in skin	Sweet potato, boiled, no skin
Calories	90	76
Dietary fiber	3.3 g	2.5 g
Beta-carotene	11,500 mcg	9,440 mcg

Sweet potato also contains fiber, 3.3 g per 100 g baked by USDA's figures. Our guide to pumpkin for dogs covers another orange vegetable owners often reach for, and what the evidence does and doesn't show.

How much sweet potato can my dog have?

WSAVA's rule is that all extras together should make up less than 10% of a dog's daily calories. It publishes the maximum for an average healthy adult dog at ideal weight.

The right column below is our estimate, worked from WSAVA's calorie limits and USDA's 90 calories per 100 g for baked sweet potato. It assumes sweet potato is the only extra that day.

Dog's weight	WSAVA daily extras limit	Plain baked sweet potato (our estimate)
4 kg (about 9 lb)	24 calories	about 25 g
10 kg (about 22 lb)	47 calories	about 50 g
20 kg (about 44 lb)	79 calories	about 90 g
30 kg (about 66 lb)	108 calories	about 120 g

If your dog gets other extras too, from training rewards to chews, the sweet potato portion has to shrink to fit. WSAVA suggests asking your vet team about a suitable amount and type of extras for your dog.

WSAVA also notes that dogs with a medical condition, dietary sensitivities or a veterinary-prescribed diet may not suit ordinary extras. If that's your dog, ask first.

Is sweet potato in dog food linked to heart problems?

The honest answer is that the FDA hasn't established one. In 2018 the FDA began looking into reports of dilated cardiomyopathy (DCM) in dogs eating certain diets.

The FDA describes DCM as a disease of a dog's heart muscle that results in an enlarged heart.

Many of the reported diets were labeled "grain-free" and had a high proportion of peas, lentils, other legume seeds (pulses) and/or potatoes in various forms as main ingredients.

The FDA counted ingredients as "main" when they were listed within the first 10 ingredients, before vitamins and minerals. In its 2019 figures, 93% of reported products had peas and/or lentils, and 42% had potatoes or sweet potatoes.

The FDA is careful about what those numbers mean. It says the reports alone do not supply sufficient data to establish a causal relationship, and that it does not know the specific connection between these diets and the cases.

Its advice to owners is to work with your veterinarian before making diet changes. The investigation looked at complete dog foods with these ingredients high on the list, and did not study plain pieces given as an extra.

Our guide to is grain-free dog food safe goes further.

Call your vet promptly if your dog:

ate a dish made with onions or garlic, which the ASPCA says can be toxic to pets
ate a dessert or pie that may contain xylitol, which the ASPCA says can cause low blood sugar, liver damage or even death
swallowed a large piece whole, or seems to be choking. WSAVA lists obstruction among the risks of the wrong extra
has a medical condition or eats a prescribed diet, before you add any new food

For a possible poisoning, you can also call the ASPCA Animal Poison Control Center at (888) 426-4435.

Questions new puppy parents ask

Can puppies eat sweet potatoes?

None of our sources gives a separate rule for puppies. WSAVA's guidance is the same at any age: a complete and balanced diet first, extras under 10% of calories. Ask your vet before adding new foods to a puppy's diet.

Can dogs eat sweet potato skin?

We found no approved source on the skin specifically. The USDA figures above for "baked in skin" describe the flesh only. If you share, plain cooked flesh in small pieces is the form the ASPCA's advice describes.

Are sweet potatoes better than regular potatoes for dogs?

The ASPCA says cooked potatoes are fine in moderation, while raw potatoes may be problematic. Sweet potato carries far more beta-carotene by USDA's figures, but both are extras inside the same 10% budget.

Can dogs eat sweet potato every day?

No source we used sets a daily or weekly limit. What WSAVA sets is the calorie ceiling for all extras combined, so a small daily piece has to fit inside it alongside everything else.

What other foods can dogs share at Thanksgiving?

The ASPCA names plain turkey, sweet potatoes and green beans. Our guides to can dogs eat turkey and what fruits can dogs eat cover more of the table.

Sources

This article is for general information and is not veterinary advice. Talk to your vet about your own dog — they know the animal in front of them.

Choolip products are food supplements, not medicine. They are not intended to diagnose or manage any medical condition. If your dog has been diagnosed with a condition, their diet should be set by your vet.

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