You also may experience stomach discomfort if you have a fructose intolerance or a rare banana allergy.
Bananas contain sorbitol, which can sometimes lead to gas, bloating, and diarrhea, too.
Bananas are also used to replenishpotassiumand other essential nutrients lost due to vomiting or diarrhea.

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Although bananas are generally well-tolerated, some people experience bloating and gas after eating them.
One reason a person may experience discomfort after eating bananas is due to their soluble fiber content.
Soluble fiber dissolves in water and is more readily fermented in the colon than insoluble fiber.
This can lead to gas and bloating in some people.
Ripe bananas are considered to be high inFODMAPS(fermentable oligosaccharides, disaccharides, monosaccharides, and polyols).
However, unripe bananas are considered to be a low FODMAP food.
Banana Allergy
Banana allergies are rare, affecting less than 1.2% of people globally.
Many people with a banana allergy are also allergic to pollen or latex because they share similar protein structures.
They may also experience nausea, abdominal pain, vomiting, and diarrhea.
What Fruits Cause the Most Gas?
Excess sorbitol intake can lead to gas and bloating.
Bananas and Fructose Intolerance
A person withfructose intolerancehas difficulty digesting fructose.
People with this intolerance should restrict or limit fructose in their diet.
Fructose malabsorption happens when the body cannot digest or absorb fructose the way it should.
This causes bloating gas and abdominal discomfort.
This condition often causes more severe symptoms and requires additional treatment besides removing fructose from the diet.
Most people can tolerate small amounts of fructose found in fruits like bananas.
They often have more difficulty tolerating large amounts of fructose found in honey and high fructose corn syrup.
What Is Fructose?
Fructose is a very sweet, simple sugar found in fruit, fruit juice, and honey.
It’s also found in table sugar.
This can help you pinpoint the foods that are causing the problem.
If you’re eating bananas that are too green or unripe, you may also experience stomach discomfort.
Drinking more water and gradually increasing your fiber intake can also reduce GI side effects.
Should You Eat Bananas on an Empty Stomach?
Consider pairing bananas with protein and healthy fats to feel full and better manage your blood sugar.
American Academy of Family Physicians.BRAT diet: recovering from an upset stomach.
Jackson Siegelbaum Gastroenterology.Colon gas & flatus prevention.
2016;12(5):324-329. doi:10.1016/j.nurpra.2015.12.007
Monash University.Bananas re-tested.
2020;5(2):60-63. doi:10.4274/BMB.galenos.2020.04.013
Family Medicine Austin.Banana allergy: symptoms and risk factors.
UW School of Medicine and Public Health.Fructose-restricted diet.
2018;7(2).
doi:10.3390/foods7020018
The Johns Hopkins Patient Guide to Diabetes.What is resistant starch.
University of Hawaii.Cooking banana.