Nobody told you what bananas do to the body when eaten every day

Friday 14 November 2025 10:00 - Mirella Mendonça
Nobody told you what bananas do to the body when eaten every day

It's in almost every kitchen. It's practical, cheap, sweet and kills hunger in seconds. But what happens when we eat bananas every day, without even thinking about it?

Many people believe that bananas are "the most innocent fruit in the world". And indeed, it has a reputation for being healthy - rich in potassium, good for the heart and perfect for those who exercise.

But what almost nobody realizes is that, behind all this positive reputation, there are subtle changes in the body that go unnoticed.

Some of them are incredible - such as increased energy and improved mood. But others can be a wake-up call, especially if consumption is exaggerated or if the person has certain health conditions.

Eating a banana a day can transform your digestion, your mood and even the way your body reacts to fatigue. But the same habit, if done without balance, can also cause effects that few associate with the fruit: such as drowsiness, constipation or glucose spikes.

Curious? Then take a look at what really happens in the body when bananas become a routine - and why not everyone reacts in the same way.


1. A natural boost of energy - but with a catch

Bananas are rich in simple carbohydrates, which provide immediate energy. That's why it's perfect before a workout or to ward off mid-afternoon hunger.

On the other hand, those who eat several bananas a day can experience glucose spikes followed by energy drops, especially those with insulin resistance. In other words, the same food that puts you in the mood can cause you to feel tired hours later.

2. The gut feels - for better or for worse

Ripe bananas help regulate the intestines and improve digestion.

Green bananas are full of resistant starch, which is great for the good bacteria in your gut.

But beware: eating too much - and drinking too little water - can cause constipation.

3. A natural shield for the heart

Bananas are one of the best sources of potassium, an essential mineral for controlling blood pressure and preventing cramps. Eating one a day can help protect the heart and improve muscle performance.

However, people with kidney problems should be careful - excess potassium can overload the kidneys.

4. Improves mood in a real way

The presence of tryptophan in bananas stimulates the production of serotonin, the feel-good neurotransmitter. This is why many people feel a sense of lightness and pleasure when eating this fruit. It's a natural "antidepressant" - and delicious.

What's the key?

Eating bananas every day is good for you, in moderation. One banana a day is enough to reap its benefits without overloading the body.

The secret lies in balance: one banana may be the perfect fuel for the body, but three a day may be too much.

What about you? Have you noticed how your body feels after eating bananas?

Mirella MendonçaMirella Mendonça
I am the editorial manager at Petitchef (Portugal and Brazil) and a huge enthusiast of travel and world cuisine, always in search of new flavors and experiences. However, as much as I love exploring the delights of different cultures, my mom's cooking will always be my favorite — with that unique flavor that only she can create.

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