Can Dogs Eat Bananas? Yes — In Small Pieces
Banana is one of the fruits veterinary nutritionists list as a healthy treat for dogs. The main thing to watch is portion size, because a whole banana adds up quickly for a small dog.
Quick answer
Yes, dogs can eat bananas. Tufts University’s veterinary nutritionists include banana in their list of healthy, relatively low-calorie treats: about ⅛ of a medium banana (20 g) is around 15 calories (Tufts).
Serve fresh banana, peeled and sliced, and keep it within your dog’s 10% daily treat allowance.
Skip banana foods with risky extras, such as banana bread or muffins with raisins, chocolate or the sweetener xylitol.
How Much Banana Can a Dog Eat?
Tufts University’s veterinary nutritionists recommend that treats make up no more than 10% of daily calories. For example, a 10 lb (4.5 kg) dog needs about 300 calories a day on average, so its treat allowance is about 30 calories; an average 75 lb (34 kg) dog needs about 1,400 calories, allowing about 140 calories of treats (Tufts). Individual needs vary, and foods that suit a healthy dog may not suit one with a medical condition.
Banana treat portions (based on Tufts: ⅛ medium banana ≈ 15 calories)
| Portion of a medium banana | Approx. calories | Fits the 10% treat budget of |
|---|---|---|
| ⅛ banana (about 20 g) | 15 | A small dog — about half of a 10 lb dog’s ~30-calorie allowance |
| ¼ banana | 30 | A 10 lb (4.5 kg) dog’s full daily treat allowance |
| ½ banana | 60 | A medium to large dog |
| Whole banana | ~120 | Close to the full allowance of an average 75 lb (34 kg) dog (~140 calories) |
How to Serve Banana to Your Dog
- Peel it and cut it into small slices or cubes sized for your dog.
- Weigh portions — Tufts strongly recommends weighing treats rather than guessing by volume.
- Use it as a reward or topper, and reduce other treats on days you give banana.
- Plain only — no chocolate spread, sugar or syrup.
Banana Foods to Avoid
- Banana bread, muffins and cakes that contain raisins or chocolate — both are toxic to dogs (ASPCA). See can dogs eat grapes? and can dogs eat chocolate?
- Sugar-free banana desserts or baked goods, which may contain xylitol (FDA).
- Banana with peanut butter is fine only if the peanut butter has no xylitol — see can dogs eat peanut butter?
Dogs With Health Conditions
Tufts notes that while these treats may be fine for a healthy pet, they may not be appropriate for pets with a medical condition. If your dog has diabetes, is on a weight-loss plan or eats a prescription diet, ask your veterinarian which treats fit (Tufts).
Frequently asked questions
How much banana can I give my dog?+
About ⅛ of a medium banana is roughly 15 calories, according to Tufts. A 10 lb dog has a daily treat allowance of about 30 calories, so a quarter of a banana would be its whole allowance. Larger dogs can have more.
Can dogs eat a whole banana?+
A whole medium banana is roughly 120 calories — close to the entire daily treat allowance of an average 75 lb dog, and several times the allowance of a small dog. It is better to share small slices.
Can dogs eat banana bread?+
It is not a good idea. Banana bread is high in calories and may contain raisins, chocolate or the sweetener xylitol, all of which are toxic to dogs. Plain fresh banana is the safer choice.
Are bananas safe for dogs with diabetes?+
Ask your veterinarian. Tufts notes that treats suitable for healthy pets may not be appropriate for pets with medical conditions.
How This Page Was Prepared
This page was researched and written by the AnimalIDFinder editorial team using veterinary school, veterinary manual, poison control and regulatory sources, all linked below. It has not been individually reviewed by a veterinarian and does not replace professional advice. Last reviewed against sources: October 2026.
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