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Are bananas good for brain health?

Discover how bananas can influence cognitive function and emotional well-being with these brain boosting benefits

Could bananas be the key to improved brain function? Learn how this everyday fruit can contribute to mental clarity and health, with benefits that go beyond mere taste. What does the evidence tell us about the link between bananas and brain health?

These bendy brain boosters are rich in key nutrients that your body needs to keep your neurons at their best:

  • Potassium: Supports cellular function and nerve health.
  • Tryptophan and serotonin: crucial for memory, mood, and anxiety reduction.
  • Catecholamines: Influence emotional well-being and stress resistance.
  • Phytochemicals: Offer protection against neurotoxins and oxidative stress, potentially preventing neurological problems.

How do bananas protect our brain health?

1. Potassium

Bananas are rich in potassium, which is necessary for the normal functioning of our cells and plays a critical role in nerve functions.

2. Tryptophan, Serotonin, & Dopamine

Research has also uncovered that tryptophan, an amino acid found in bananas, plays a role in preserving memory, regulating mood, and increasing the ability to absorb new information and remember it.2

Tryptophan is also the sole precursor of the neurotransmitter serotonin, which is also important for regulating mood and cognition.2 

Although serotonin from bananas cannot pass through the blood-brain barrier, it supports the body’s function of creating serotonin.

Serotonin also helps alleviate anxiety and insomnia symptoms, overall, positively impacting the mental state.

In addition to serotonin, bananas contain a large amount of catecholamines such as dopamine and norepinephrine which strongly influence emotional stability and controlling stress.3

3. Phytochemicals

Phytochemicals found in bananas help preserve nerve tissue against neurotoxins, which deteriorate nervous tissue when exposed to its substance.3 

This may also help in preventing neurological diseases such as Alzheimer’s disease.

Phytochemicals also have strong antioxidant properties, which help to fight against oxidative stress.3 Oxidative stress may also lead to age-related cognitive deterioration and neurological disorders. 

Throughout the research, it was uncovered that bananas also provided further health benefits such as reducing the risks of chronic diseases, cardiometabolic conditions, gastrointestinal disorders and improving immune function.

Besides the delicious taste, bananas may be good for brain health. 

References: 

  1. Ranjha, Muhammad Modassar Ali Nawaz, Irfan S, Nadeem M, Mahmood S. A Comprehensive Review on Nutritional Value, Medicinal Uses, and Processing of Banana. Food reviews international. 2022;2020;38.199-225. 
  2. Jenkins TA, Nguyen JCD, Polglaze KE, Bertrand PP. Influence of Tryptophan and Serotonin on Mood and Cognition with a Possible Role of the Gut-Brain Axis. Nutrients. 2016;8:56. 
  3. Sidhu JS, Zafar TA. Bioactive compounds in banana fruits and their health benefits. Food quality and safety. 2018;2:183-188. 
Victoria Hayrabedian
Victoria Hayrabedian
Victoria is completing her Bachelor of Science in Nursing with a minor in Biology at Toronto Metropolitan University. She is committed to using her scientific knowledge to provide the best care for her patients and is constantly seeking opportunities to expand her understanding of the human body and the latest medical treatments. In addition to her studies, Victoria is an avid reader and enjoys volunteering in her free time.
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