Can dogs eat bananas? How much and how to serve them
Yes, dogs can eat bananas in moderation. Here’s how much to give by size, what bananas really offer, how to serve them safely and when to skip them.
Quick answer
Yes, dogs can eat peeled bananas in small amounts. Bananas provide potassium, fiber and vitamin B6, but they’re high in sugar: as an occasional treat, give 2–4 slices to a small dog and up to half a banana to a large dog, staying under 10% of daily calories. Skip the peel, banana chips and anything with chocolate.
In this article
Yes, dogs can eat bananas. Peeled and cut into bite-size pieces, banana is a safe, soft treat that most dogs love. The catch is portion size, because bananas are one of the sweetest fruits you can share.
Below you’ll find how much banana your dog can have based on size, what bananas actually contribute, the best ways to serve them and the situations where it’s smarter to skip them.
Are bananas good for dogs?
Yes, as an extra. A medium banana (about 4 oz or 118 g of fruit) has roughly 105 calories, 3 g of fiber, about 420 mg of potassium and a good amount of vitamin B6, plus some vitamin C and magnesium. Keep that in perspective, though:
- Bananas don’t fix deficiencies. A dog eating a complete and balanced commercial food already gets all the potassium and vitamins it needs. Banana is a treat, not a supplement.
- They’re high in sugar. About 14 g per medium banana. For overweight or diabetic dogs, that sugar outweighs any benefit.
- The fiber cuts both ways. A little supports normal digestion; too much causes gas, loose stools or diarrhea.
Their big advantage over many store-bought treats is that they contain no fat, salt or additives, and they’re easy to break into tiny pieces for training.
How much banana can a dog eat?
Treats shouldn’t exceed 10% of your dog’s daily calories, and that cap covers every extra in the day. These amounts are a general guide for a healthy adult dog that isn’t getting many other treats that day (a slice about ⅜ inch / 1 cm thick weighs about 0.3 oz / 8 g and has roughly 7 calories):
| Dog size | Weight | Maximum in one day |
|---|---|---|
| Toy | Under 11 lb (5 kg) | 1–2 slices (0.3–0.6 oz / 8–16 g) |
| Small | 11–22 lb (5–10 kg) | 2–4 slices (0.6–1.1 oz / 16–32 g) |
| Medium | 22–55 lb (10–25 kg) | ¼–⅓ of a banana (1–1.5 oz / 30–40 g) |
| Large | 55–90 lb (25–40 kg) | ⅓–½ banana (1.5–2 oz / 40–60 g) |
| Giant | Over 90 lb (40 kg) | Up to ½ banana (2 oz / 60 g) |
Ideally, offer banana two or three times a week rather than every day. Very active dogs can handle a bit more; dogs on a diet should get less.
How to give your dog bananas safely
- Always peel it. Banana peels aren’t toxic, but they’re fibrous and hard to digest. They can cause vomiting and, if a big piece is swallowed, an intestinal blockage, especially in small dogs.
- Choose a ripe banana, yellow with a few brown spots: it’s softer and easier to digest.
- Slice or dice it to suit your dog’s mouth to prevent choking in dogs that gulp.
- Serve it plain, without sugar, honey, whipped cream or chocolate.
Serving ideas that work well:
- Frozen: frozen banana slices make a cooling post-walk treat in summer.
- Mashed into a stuffable rubber toy, mixed with a bit of your dog’s canned food and frozen so it lasts longer.
- Mixed into meals in a small amount for picky eaters.
Banana products to avoid
- Banana chips: usually fried, sweetened or salted, plus hard and calorie-dense.
- Banana bread and muffins: may contain raisins, macadamia nuts, chocolate chips or xylitol, along with lots of sugar and fat.
- Smoothies, banana pudding and milkshakes: milk, cream and sweetened yogurt add lactose and calories.
- Chocolate-dipped banana: chocolate is toxic to dogs; if your dog got some, see what to do if your dog eats chocolate.
When to skip bananas
- Overweight dogs: because of the sugar, lower-calorie treats such as watermelon or apple are a better fit.
- Diabetic dogs: banana sugar can throw off blood glucose control; ask your vet first.
- Dogs with kidney or heart disease, or on a prescription diet: those diets carefully control minerals like potassium, so check with your vet before adding any food.
- Sensitive stomachs: introduce banana slowly, starting with one slice.
Signs a banana didn’t agree with your dog
The most common reaction is mild stomach upset: gas, soft stools, diarrhea or a bit of vomiting after eating too much at once. It usually clears up within 24 hours once you stop the banana.
Other safe fruits for your dog
To mix things up, apples without seeds are crunchy and lower in calories, and watermelon is mostly water, perfect for hot days. On the other hand, grapes and raisins are toxic even in small amounts. You’ll find more options in our list of fruits dogs can eat, and everything to keep off the menu in toxic foods for dogs.
Frequently asked questions
Can puppies eat bananas?
Yes, once they’re eating solid food normally, but in very small amounts: a pea-size piece as a reward. Puppies have more sensitive stomachs and need nearly all their calories to come from a complete puppy food, which is what supports healthy growth. Introduce banana gradually and check their stool the next day.
Do bananas help with diarrhea in dogs?
Some people use bananas for their soluble fiber and potassium, but there’s no solid evidence they speed recovery, and the sugar can make some cases worse. If your dog has diarrhea, follow your vet’s advice, which usually means a short-term bland diet, small frequent meals and fresh water available at all times.
Can dogs eat banana peels?
They aren’t toxic, but don’t offer them. Peels are very fibrous, may carry pesticide residue and are hard to digest, so they often lead to vomiting or diarrhea. A large piece can get stuck in a small dog’s intestine. If your dog ate a whole peel, watch for the next 24–48 hours to make sure it eats, poops and acts normally.
Are bananas or apples a better treat for dogs?
It depends on the dog. Bananas are softer and higher in calories (about 89 calories per 100 g versus 52 for apples), so they suit active dogs or seniors with dental issues. Apples, minus the core and seeds, are crunchier and lighter, a better pick for dogs prone to weight gain. Rotating the two is an easy way to keep treats interesting.
Can dogs eat dried bananas?
Only unsweetened dehydrated banana with no added oil, and only in tiny amounts. Drying concentrates the sugar and calories: about 1 oz (30 g) has roughly the same calories as a whole fresh banana. The hard texture is also a choking risk for dogs that gulp. Fresh banana is almost always the better choice.
Sources
- American Kennel Club (AKC): fruits and vegetables dogs can and can’t eat.
- USDA FoodData Central: nutrient profile of raw bananas.
- WSAVA (World Small Animal Veterinary Association): global nutrition guidelines, including guidance on treats.
- ASPCA Animal Poison Control Center: people foods to avoid feeding your pets.
This article is for information only and is not a substitute for a veterinary exam. If your dog gets worse, is in pain or shows warning signs, call your vet or an emergency animal hospital.