Bananas: 11 Evidence-Based Health Benefits (2024)

Bananas are native to Southeast Asia but now grow in many warm climates around the world.

They’re an excellent choice if you’re interested in adding more healthy fruits to your diet.

Bananas contain fiber and many beneficial nutrients, including:

  • potassium
  • vitamin B6
  • vitamin C
  • various antioxidants and phytonutrients
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Here are 11 science-based health benefits of bananas.

Bananas contain a fair amount of carbs, water, fiber, and antioxidants but little protein and no fat.

One medium banana contains:

  • Calories: 112
  • Fat: 0 grams (g)
  • Protein: 1 g
  • Carbs: 29 g
  • Fiber: 3 g
  • Vitamin C: 12% of the Daily Value (DV)
  • Riboflavin: 7% of the DV
  • Folate: 6% of the DV
  • Niacin: 5% of the DV
  • Copper: 11% of the DV
  • Potassium: 10% of the DV
  • Magnesium: 8% of the DV

Bananas are rich in soluble fiber. During digestion, soluble fiber dissolves in liquid to form a gel. This may also contribute to a banana’s sponge-like texture.

Unripe (green) bananas also contain resistant starch, a type of fiber that your body does not digest.

Together, these two types of fiber may help moderate your blood sugar levels after meals and regulate your appetite by slowing the emptying of your stomach.

This means that despite their higher carb content, bananas may not cause major spikes in blood sugar levels in people who don’t have diabetes.

However, for those who have diabetes, eating a large portion in one sitting may cause blood sugar levels to rise too high, so it’s best to stick to one banana at a time.

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Dietary fiber has been linked to many health benefits, including improved digestion.

Resistant starch, the type of fiber found in unripe bananas, is a prebiotic. Prebiotics escape digestion and end up in your large intestine, where they become food for the beneficial bacteria in your gut (probiotics).

What’s more, pectin — a fiber found in both ripe and unripe bananas — may help prevent constipation and soften stools.

Some test-tube studies even suggest that pectin may help protect against colon cancer, although further research in humans is needed to learn more about this possible benefit.

No study has directly investigated the effects of bananas on weight loss. However, bananas have several attributes that could make them a weight-loss-friendly food.

Bananas have relatively few calories — just over 100 calories in an average banana — but are nutritious and filling.

They’re also packed with dietary fiber and resistant starch, which may help you feel full longer and therefore reduce the frequency and size of your meals.

If you’d like to include unripe bananas in your diet, try using them as you’d use plantains.

Potassium is a mineral that’s vital for heart health and especially for blood pressure management. However, few people get enough potassium in their diet.

Bananas are a great source of potassium, with a medium banana providing 10% of the DV.

A potassium-rich diet could help lower your blood pressure, reducing your risk of hypertension. A 2017 study in mice also suggests that potassium may lower the risk of heart disease by 27%.

Additionally, bananas contain 8% of the DV for magnesium, another important mineral for heart health.

Magnesium deficiency (hypomagnesemia) may be linked to an increased risk of heart disease, elevated blood pressure, and high levels of fats in the blood. Therefore, it’s essential to get enough of this mineral from either your diet or supplements.

Fruits and vegetables are excellent sources of dietary antioxidants, and bananas are no exception.

They contain several types of potent antioxidants, including flavonoids and amines. These antioxidants are linked to many health benefits, such as a reduced risk of heart disease and macular degeneration.

Antioxidants help prevent oxidative damage to your cells caused by free radicals. If you do not consume enough antioxidants, free radicals can build up over time and cause harm if their levels become high enough in your body.

The soluble fiber in bananas may help keep you full by adding bulk to your digestive system and slowing digestion.

Additionally, bananas are relatively low in calories for their size.

Combined, the low calorie and high fiber content of bananas make them a more filling snack than some other options, such as processed or sugary boxed snacks.

Protein is filling, but bananas are low in this macronutrient. For a hunger-reducing snack, you can try eating a sliced banana with a protein-rich food such as Greek yogurt or blending a banana into a protein shake.

Insulin resistance is a significant risk factor in several chronic diseases, including type 2 diabetes.

Studies suggest that regularly eating resistant starch may improve insulin sensitivity, making your body more responsive to the blood sugar-regulating hormone insulin.

But more research is needed to investigate how the resistant starch in bananas might affect insulin sensitivity.

Potassium is vital for healthy kidney function and blood pressure regulation.

As a great dietary source of potassium, bananas could be especially beneficial for keeping your kidneys healthy.

A 2019 study that included more than 5,000 people with early stage chronic kidney disease linked potassium with lower blood pressure and a slower progression of kidney disease.

However, some people who have late stage kidney disease or are undergoing dialysis need to restrict their potassium intake. If you fall into one of these categories, speak with a healthcare professional before increasing your potassium intake.

Bananas are sometimes referred to as the perfect food for athletes. This is largely due to their content of easily digested carbs along with potassium and magnesium, which act as electrolytes.

You lose electrolytes through your sweat during vigorous exercise. Resupplying your body with potassium and magnesium after sweating may reduce exercise-related muscle cramps and soreness.

Specific research on the effects of bananas on exercise performance, cramping, and exercise recovery is lacking. But bananas can provide excellent nutrition before, during, and after exercise.

Bananas are not only healthy and tasty but also convenient.

They make a great addition to yogurt, cereal, or smoothies, and they work well as a topping for whole grain toast with peanut butter. You can even use them in place of sugar in your baking and cooking.

Bananas are also easy to transport and are usually well tolerated and easily digested. All you need to do is peel them and you’re good to go.

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Quick banana recipes

You can make easy, delicious pancakes by making a banana batter. Combine one mashed banana with two beaten eggs, and then cook the mixture as you would any other pancake batter. Add some quick oats to the batter for extra fiber and bulk.

If you freeze banana slices, you can use a high powered blender to blend them with cocoa powder to make chocolate “nice cream.”

For baked oatmeal muffins, combine overripe bananas with:

  • unsweetened applesauce
  • oats
  • milk
  • baking powder
  • a sweetener such as agave nectar or maple syrup

Once the ingredients are mixed, pour the batter into a muffin tin and pop it into the oven.

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Is it good to eat a banana every day?

Bananas are healthy, delicious, and versatile fruits. They’re full of nutrients that could help prevent constipation, improve digestive and gut health, and promote recovery from intense activity.

Eating one banana per day will provide:

  • 12% of the DV for vitamin C
  • 10% of the DV for potassium
  • 8% of the DV for magnesium

Eating one banana per day is a healthy option. But since most of the calories in bananas come from carbs, eating too many bananas may result in high sugar intake, which could lead to high blood pressure.

What are the benefits of eating a banana?

Bananas are a nutritious, low calorie fruit that may help:

  • improve blood sugar levels
  • prevent constipation
  • improve gut, kidney, and heart health
  • aid in weight loss
  • keep you feeling full
  • support post-exercise recovery

What is the best time to eat bananas?

Bananas are a common breakfast food because they are nutritious, filling, and easy to eat.

However, since bananas are high in carbs, they may increase blood sugar levels in people with type 2 diabetes. Pairing a banana with a food that’s high in protein and fat, such as Greek yogurt, may be more beneficial.

Bananas are a popular fruit with many potential health benefits.

They may improve your digestion and heart health, thanks to their fiber and antioxidant content. Plus, they may support weight loss because they’re relatively low in calories, nutrient-dense, and filling.

Both ripe (yellow) bananas and unripe (green) bananas can satisfy your sweet tooth and help keep you healthy.

Bananas: 11 Evidence-Based Health Benefits (2024)

FAQs

Bananas: 11 Evidence-Based Health Benefits? ›

Takeaway. Bananas are a popular fruit with many potential health benefits. They may improve your digestion and heart health, thanks to their fiber and antioxidant content. Plus, they may support weight loss because they're relatively low in calories, nutrient-dense, and filling.

What is the truth about bananas health benefits? ›

Takeaway. Bananas are a popular fruit with many potential health benefits. They may improve your digestion and heart health, thanks to their fiber and antioxidant content. Plus, they may support weight loss because they're relatively low in calories, nutrient-dense, and filling.

What do doctors say about bananas? ›

They're a good source of potassium, antioxidants and fiber, and can help reduce the risk of chronic disease, improve gut health and more. They're great as part of a meal, in smoothies or as an on-the-go snack with a handful of nuts or a swipe of peanut butter.

Does the banana peel have any medical benefits? ›

Banana peels are packed with polyphenols, carotenoids, and other antioxidants that fight cancer-causing free radicals in your body. Eating more banana peels, especially green, unripe peels, can increase your antioxidant levels and help reduce your risk of cancer.

Is there a downside to eating bananas? ›

Consuming too much potassium can be harmful to those whose kidneys are not fully functional. If the kidneys are unable to remove excess potassium from the blood, it could be fatal. People who use beta-blockers should eat high potassium foods, such as bananas, in moderation.

Are bananas anti-inflammatory? ›

Bananas contain anti-inflammatory components that could have a significant impact on human health. One such component is bromelain, an enzyme known for its anti-inflammatory properties [5].

What happens if I eat banana every day? ›

Eating too many bananas may have detrimental health effects, such as weight gain, poor blood sugar control, and nutrient deficiencies.

Why banana is a superfood? ›

Bananas are a good source of potassium, magnesium, vitamin B6, and other important nutrients. They're good for digestive and heart health. You can eat this tropical fruit raw, or add it to smoothies or baked goods.

What is the banana trick to empty bowels? ›

Choose yellow or browning bananas to stimulate bowel movements. Unripe, green bananas have lots of tannins and resistant starch that bind your waste together and make it harder to pass. As they ripen, the tannins and starch become soluble sugars and fiber, which regulate healthy bowel movements.

Why do diets say not to eat bananas? ›

For weight loss, our science suggests that bananas are not a good option because of the high sugar content in the fruit and how your body responds to it. When you eat a banana, all the carbohydrates it contains are broken down into simple sugars, which cause a rise in your blood sugar levels.

Why do surgeons practice on bananas? ›

The texture of banana peel is like human skin and more sensible practice. Students were permitted to practice different types of suturing method such as simple interrupted suture, vertical and horizontal mattress suture by using the different species of banana.

What does rubbing a banana on your face do? ›

Bananas may have some skin benefits – Bananas do contain beneficial antioxidants like vitamin C, B vitamins, magnesium, and potassium. And the inside of the peel contains lutein, which may hydrate, brighten, and soothe skin. So rubbing it on your face probably provides some nourishment.

Why can't you eat banana peels? ›

There are some potential risks to eating banana peels. “They can be contaminated with dirt, microorganisms (like bacteria) or fertilizer,” Amidor says. “It is recommended to wash banana peels under cool, running water to remove any dirt, debris, microorganisms and anything else that may be on the peel.”

Are bananas antifungal? ›

Due to various phytochemicals present in the banana peel, it possesses several bioactive properties such as antifungal 44 , antibacterial 58 , antioxidant 6,52 and anticancer 12,47 . One of the major threats that livestock production encounters globally is that of parasitic attack. ...

What does eating banana everyday do to your body? ›

Potassium in bananas is good for your heart health and blood pressure. A medium-sized banana will provide around 320-400 mg of potassium, which meets about 10% of your daily potassium needs. Potassium helps your body maintain a healthy heart and blood pressure. In addition, bananas are low in sodium.

Is a banana a day too much sugar? ›

A banana will raise your blood sugar, but how much will depend on the size and ripeness of the banana, and the foods it is paired with. The American Diabetes Association recommends eating bananas and other fruit as they contain fiber. It notes that eating fiber can help lower blood sugar levels.

At what point is a banana the healthiest? ›

But bananas are healthy and safe to eat at any stage of their development. The next time you reach for one, remember that a banana that's a little green might have slightly more gut-friendly fiber than one that's completely ripe or overripe (those might be better for one of our healthy banana dessert recipes).

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