Why
Sweet potatoes provide fiber and vitamins A, B6 and C. The AKC notes they should not be a main part of the diet and mentions the FDA investigation into heart disease linked to some pet foods heavy in potatoes and legumes.
How to serve sweet potatoes
- Cook until soft and remove the skin.
- Start with a spoonful.
Watch out for
- Never feed raw sweet potato.
- Too much vitamin A can harm bones and muscles over time.
- Keep it minimal for diabetic or overweight dogs.
How much sweet potatoes can a dog eat?
Treats of every kind should stay under 10% of a dog's daily calories, says the World Small Animal Veterinary Association. Here is that daily treat budget by size, and how much sweet potatoes it buys if sweet potatoes is the only treat that day. Sweet potatoes has about 76 kcal per 100 g; 1 medium (151 g) is about 115 kcal.
| Dog size | Daily treat budget | Max sweet potatoes a day |
|---|---|---|
| Small (10 lb) | 26 kcal | 34 g (a quarter of medium) |
| Medium (30 lb) | 59 kcal | 78 g (half of medium) |
| Large (60 lb) | 100 kcal | 132 g (three quarters of medium) |
| Giant (90 lb) | 136 kcal | 179 g (about one and a half medium) |
Less is better for small, overweight or diabetic dogs. Work out your own dog's numbers with the dog food calculator. Calories: USDA FoodData Central, Sweet potato, cooked, boiled, without skin.
Other vegetables: quick answers
| Food | Verdict | Short answer |
|---|---|---|
| Asparagus | Avoid | Not unsafe, but not worth it. Asparagus is tough raw and loses most of its value when cooked soft. |
| Mushrooms | Avoid | Store-bought mushrooms are generally fine, but wild mushrooms can be deadly. |
| Tomatoes | Avoid | Best avoided. Ripe flesh is generally safe, but the green parts of the plant contain a toxin. |
| Broccoli | Small amounts | Yes, in small amounts. Cooked florets are easiest on the stomach. |
| Brussels sprouts | Small amounts | Yes, a few cooked sprouts. Expect gas. |
| Corn | Small amounts | Yes, off the cob. The cob can cause a dangerous blockage. |
| Peas | Small amounts | Yes, plain green peas in moderation. |
| Potatoes | Small amounts | Yes, plain and fully cooked, as an occasional extra. Never green or raw. |
Rules for any new food
- Plain is the rule: no salt, butter, oil, onion, garlic, sugar or sweeteners. Most of the danger in human food comes from what is added to it.
- Keep all treats under 10% of your dog's daily calories (WSAVA). The rest should come from a complete dog food.
- Check labels for xylitol, raisins, chocolate and macadamia nuts, which turn up in baked goods, snacks and spreads.
- If your dog has a health condition, such as diabetes, pancreatitis or kidney disease, ask your vet before adding any new food.
Frequently asked questions
Are sweet potatoes safe for dogs?
Yes, cooked, peeled and plain, in moderation.
How much sweet potatoes can a dog eat?
Treats of any kind should stay under 10% of a dog's daily calories (WSAVA). For a 30 lb dog that is about 59 kcal a day, or roughly 78 g of sweet potatoes if it is the only treat that day.
Sources
- American Kennel Club, "Can Dogs Eat Sweet Potatoes?" (updated May 12, 2026)
- WSAVA Global Nutrition Committee, "Feeding treats to your dog"
- USDA FoodData Central, SR Legacy (April 2018 release)
Checked October 17, 2026. We are a reference, not a vet: if in doubt, call yours. How we check.