Yes, dogs can eat bananas. In fact, bananas are a great fruit to give to dogs as a healthy snack. Like all foods, especially human foods, bananas should be given to dogs in moderation because of the amount of sugar in them. For small dogs, a few pieces of bananas once or twice a week is perfect. For large dogs, a healthy dose is half a banana once or twice a week.
When given in moderation, bananas are a great source of many vitamins and minerals that can greatly benefit your dog's health. Bananas are low in sodium and cholesterol and contain:
Additionally, bananas are great for digestion and can provide gastrointestinal relief. However, too much banana can lead to gastrointestinal issues such as constipation, obesity, and even diabetes.
Note: never give your dog a banana peel. It's not toxic for them to eat, but it can pose a risk for choking and intestinal blockage, and it can be difficult to digest.
Fun fact: a banana peel can actually be used to soothe bug bites or other itchy skin issues. Rubbing the inside of the banana peel onto inflamed or itchy skin can temporarily soothe your dog.