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? ›

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? ›

Takeaways. 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 happens when you eat bananas every day? ›

Eating too many bananas or other high-potassium foods can cause excess potassium in the body, also called hyperkalemia. This can cause serious health problems, including heart issues. While most people wouldn't be able to stomach the number of bananas necessary to cause this to happen, it's something to be mindful of.

Is 1 banana a day enough potassium? ›

In particular, the Express headline suggests that a banana a day would be enough to meet your potassium requirements, whereas, in fact, a banana contains about 11 per cent of the 3,500mg recommended by UK dietary guidelines.

Is a banana a day too much sugar? ›

True or False: Bananas have too much sugar- False!

An average medium sized banana contains about 14 grams of sugar, which is about 53% of its total 105 calories. When you see that a banana is half sugar, it's easy to understand why some might think they need to steer clear of them.

What is the healthiest banana to eat? ›

Green Bananas Can Offer Health Benefits. Green bananas are less sweet and contain less sugar than riper yellow bananas. They also have more resistant starch, which may benefit blood sugar management and your overall health. Bananas are incredibly tasty and easy to eat.

Are apples or bananas healthier? ›

“If you consider the concentration of a wide array of nutrients relative to calories, the orange is the most nutritious, followed by the apple, followed by bananas,” said Dr.

Why not eat bananas at night? ›

In fact, eating a banana late at night may cause a big rise in your blood sugar — and this could make your sleep worse. ZOE's scientists run the world's largest nutrition study, with over 50,000 participants so far.

What is the best time to eat bananas? ›

But our body's metabolism is at its lowest in the night. So one should ideally consume bananas in the morning or evening, but eating bananas at night can regulate the sleep cycle. Tryptophan is an essential amino acid that helps the body produce serotonin, a brain chemical that regulates sleep,” Dr.

Is banana a Superfood? ›

This nifty yellow fruit is touted as the first “superfood.” It's packed with fiber to make you feel full and vitamins that do your body good. Americans go bananas for them. They eat more than 27 pounds a year -- about 90 bananas. That's more than oranges and apples combined.

How can you tell if your potassium is low? ›

What are the symptoms of potassium deficiency?
  • weakness and fatigue.
  • feeling tired.
  • muscle cramps.
  • an abnormal heart rhythm (arrhythmia) — skipped heartbeats or an irregular heartbeat.

What is the number one fruit to lower blood pressure? ›

The top fruits for lowering blood pressure include bananas, apples, pears, apricots, grapes, raisins, kiwis, mangoes, watermelon, pomegranate, plums, prunes, avocado, cantaloupe, honeydew melon, tomatoes, citrus fruit, berries, and more.

Do bananas affect blood pressure? ›

Bananas are a nutritious and tasty option for helping lower blood pressure. Loaded with essential nutrients like potassium, fiber and vitamin C, bananas offer several benefits for cardiovascular health. Their potassium content counterbalances sodium intake, promoting blood vessel relaxation.

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]. Bromelain has been studied for its potential to reduce inflammation and alleviate symptoms in conditions such as osteoarthritis.

Do bananas lower blood pressure? ›

The Bottom Line. Bananas are a nutritious and tasty option for helping lower blood pressure. Loaded with essential nutrients like potassium, fiber and vitamin C, bananas offer several benefits for cardiovascular health. Their potassium content counterbalances sodium intake, promoting blood vessel relaxation.

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