Potatoes and dogs: which form is safe and which is not
Caution
Cooked, plain, peeled white potato is the safe form for dogs; raw potato, green skin, sprouts, leaves and stems are not.
Depends on the form, the amount or the dog.
Potatoes are a caution food for dogs. The safe form is cooked, plain, peeled white potato. Raw potato, green skin, sprouts, and the leaves and stems are unsafe because of solanine. Even the cooked form can cause GI upset and adds a carbohydrate load, so it stays an occasional extra.
- Safe form
- plain fully cooked potato
- Unsafe form or part
- raw/green potato and plant parts require separate toxicology review
- Preparation
- fully cook; plain
- Do not offer
- butter; salt; onion/garlic seasoning; sauces
- Deliberate feeding
- Only once the form and amount are clear
- Hazard level
- 2 of 4
If your dog has already eaten potatoes
Do not intentionally feed until form/amount is clarified. If a large amount was eaten or symptoms occur, contact a veterinarian.
Sources: PetMD. Evidence grade B+. Last verified 2026-09-07. Dataset 2026.09.
Which form of potatoes the sources actually cleared
The verdict covers one form only: white potato that has been cooked through, peeled, and served plain. Everything else on a potato is outside it. Raw potato is not covered, and neither is green skin, sprouts, or the leaves and stems of the plant — those are listed as unsafe parts, not as a smaller version of the same risk. Prepared potato dishes are also outside the verdict: fried potatoes, seasoned or buttered potato, and potato salad are all named as forms to avoid, even though the potato underneath them is cooked.
Preparing potatoes for a dog
Three preparation rules are recorded, and all three apply together. Cook the potato thoroughly rather than serving it part-cooked. Peel it, which also removes skin that has gone green. Serve it plain — no oil for frying, no butter, no seasoning, and not stirred into potato salad. A potato that meets all three rules is the only version this verdict describes. If any one of them is skipped, you are no longer serving the form the sources treat as safe.
What actually goes wrong
- GI upset if overfed
- preparation-specific risks
Three risks are recorded. Solanine is the reason raw potato, green skin, sprouts, and the plant's leaves and stems are treated as unsafe rather than merely unsuitable — it is a property of those parts, so cooking and peeling exist to remove them. GI upset is listed for potato generally, so an upset stomach is possible even from a correctly prepared serving. Carbohydrate load is the third: potato is a starchy food, which is why it is framed as a conditional extra rather than a routine addition. Contact a veterinarian if your dog ate raw green potato, sprouts, or plant material.
How much counts as too much
All treats combined should generally stay within 10% of daily calories for a healthy adult dog in ideal body condition; individual needs vary.
The table below is the WSAVA reference allowance, printed as published. It is not a portion of potatoes: it is the total treat-calorie ceiling that everything given outside meals has to fit inside. Average healthy adult dog in ideal body condition. A veterinary team should set the individual dog's daily energy requirement.
| Body weight (kg) | Body weight (lb) | Max treat kcal/day |
|---|---|---|
| 2 | 4.4 | 14 |
| 4 | 8.8 | 24 |
| 6 | 13.2 | 32 |
| 8 | 17.6 | 40 |
| 10 | 22 | 47 |
| 15 | 33.1 | 64 |
| 20 | 44.1 | 79 |
| 25 | 55.1 | 94 |
| 30 | 66.1 | 108 |
| 35 | 77.2 | 121 |
| 40 | 88.2 | 134 |
| 45 | 99.2 | 146 |
Source: WSAVA Global Nutrition Committee, Feeding Treats to Your Dog. Retrieved 2026-09-07. Working out how many calories your dog needs in total is a separate question — the dog food calculator handles that side.
What these sources do not settle
No medical cautions are recorded for potato, which means the sources here do not name conditions that change the answer — not that no dog has one. The sources also give no portion count, no serving size, and no frequency, so how much cooked potato suits a particular dog is not settled here. The general guidance is that all treats combined stay within about 10% of daily calories for a healthy dog, and individual needs vary. Evidence grade: B+.
Sources and review
- PetMD — What Can Dogs NOT Eat? (grade B+, retrieved 2026-09-07)
Verdict last verified 2026-09-07. How this site handles sourcing and corrections is set out in the editorial policy, and every reference the site relies on is listed on the sources page.
This page is reference material, not veterinary advice. A dog with a medical condition, a prescription diet or a suspected ingestion needs a veterinarian or a poison control centre, not a web page.
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