Bananas are unique fruit with unique properties. It is a fantastic fruit with sweet taste that most people enjoy. Bananas perfectly satisfy hunger and provide energy and useful nutrients. It has a rare combination of energy value, tissue-building elements, vitamins and minerals, fiber and other essential nutrients. Also bananas have very convenient natural packaging. It is compact, healthy, easy to carry, and easy to use.
The health benefits of bananas are being investigated worldwide. And here is the list of proven benefits. But first, some interesting facts about bananas:
- Banana fruit is botanically defined as a berry, and the plant it grows on is a herb.
- They are the only fruit that actually develop better color, texture, aroma, and sweetness when ripened after harvest. It’s the tiny seeds within the fruit that release a ripening hormone, a mixture of ethylene gas and carbon dioxide.
- Bananas are the most potassium-rich fruit that is available worldwide and year-round.
- Bananas make baby boys! Recently researchers confirmed the old wives' tale that eating bananas is associated with having a boy.
1 Reduced risk of high blood pressure
Bananas are very rich sources of potassium, an essential mineral for maintaining normal blood pressure and heart function. Also, potassium helps the body maintain normal fluid and electrolyte balances in the cells. A medium-sized banana provides 350 mg of potassium. The effectiveness of potassium-rich fruits in lowering blood pressure has been demonstrated by a number of studies. According to the FDA, “Diets containing foods that are good sources of potassium and low in sodium may reduce the risk of high blood pressure and stroke.”
2 Reduced risk of stroke
There is evidence that people with a low intake of potassium may have an increased risk of stroke. The observational study of 5,600 people aged over 65 found that those with the lowest intake of the potassium were 50% more likely to suffer a stroke.
Recent 2014 study confirmed that high potassium diet is associated with a lower risk of all types of stroke.
3 Digestive health
Banana is rich in nondigestible fibers (including cellulose, hemicellulose, and alpha-glucans). It can help relief constipation due to resistant starch content, which behaves like dietary fibre. And green bananas are effective for diarrhea. Bananas normalize the colon’s function to absorb large amounts of water for regular bowel movements. Bananas' benefit is due to their richness in pectin, which is a water-absorbent that gives fruits a bulk producing ability.
Bananas are an exceptionally rich source of fructooligosaccharide, a compound called a prebiotic because it nourishes probiotic (friendly) bacteria in the colon. These beneficial bacteria produce vitamins and digestive enzymes that improve our ability to absorb nutrients, plus compounds that protect us against unfriendly microorganisms. When fructooligosaccharides are fermented by these friendly bacteria, not only do numbers of probiotic bacteria increase, but so does the body’s ability to absorb calcium.
4 Energy source for exercisers
Bananas are an excellent alternative to sports drinks. The fruit is a source of antioxidants not found in sports drinks, fiber, potassium and Vitamin B6. In addition, bananas have a much healthier blend of sugars.
5 Help to fight infections
The animal study revealed that eating bananas enhance protective functions of the body against infections.
6 Reduced risk of neurodegenerative disorders
Researchers at Cornell University  found that that fresh apples, banana, and orange can protect neuron cells against oxidative stress-induced neurotoxicity and may reduce the risk of neurodegenerative disorders such as Alzheimer’s disease.
7 Sleep-promoting food
Banana contain the sleep-inducing amino acid L-tryptophan. Also, bananas increase the level of melatonin in the body .
Even a single banana meal produces noticeable beneficial effect on "bad" cholesterol. It is suggested that the dietary fibre component in banana pulp is responsible for this effect. The amount of fibre in banana is relatively constant during banana ripening.
9 Kidney health
The results of the Swedish population based prospective study (13.4 years) of 61,000 women aged 40-76, show that women eating more than 75 servings of fruits and vegetables per month (which translates into 2.5 per day) cut their risk of kidney cancer 40%. Among the fruits, bananas were especially protective.
10 The healing peel
|Nutrient content of Banana|
|Total lipid||0.33 g|
|Carbohydrate, by difference||22.84 g|
|Sugars, total||12.23 g|
|Glucose (dextrose)||4.98 g|
|Calcium, Ca||5 mg|
|Iron, Fe||0.26 mg|
|Magnesium, Mg||27 mg|
|Phosphorus, P||22 mg|
|Potassium, K||358 mg|
|Sodium, Na||1 mg|
|Zinc, Zn||0.15 mg|
|Copper, Cu||0.078 mg|
|Manganese, Mn||0.27 mg|
|Selenium, Se||1 mcg|
|Fluoride, F||2.2 mcg|
|Vitamin C, total ascorbic acid||8.7 mg|
|Vitamin B1 (Thiamin)||0.031 mg|
|Vitamin B2 (Riboflavin)||0.073 mg|
|Vitamin B3 (Niacin)||0.665 mg|
|Vitamin B5 (Pantothenic acid)||0.334 mg|
|Vitamin B6||0.367 mg|
|Vitamin A, IU||64 IU|
|Vitamin A, RAE||3 mcg_RAE|
|Vitamin E (alpha-tocopherol)||0.1 mg|
|Tocopherol, gamma||0.02 mg|
|Tocopherol, delta||0.01 mg|
|Vitamin K (phylloquinone)||0.5 mcg|
|Fatty acids, saturated||0.112 g|
|Fatty acids, monounsaturated||0.032 g|
|Fatty acids, polyunsaturated||0.073 g|
|Aspartic acid||0.124 g|
|Glutamic acid||0.152 g|
|Carotene, beta||26 mcg|
|Carotene, alpha||25 mcg|
|Lutein + zeaxanthin||22 mcg|
Sources & References
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- 5. Levine SR, Coull BM. Potassium depletion as a risk factor for stroke: will a banana a day keep your stroke away? Neurology. 2002 Aug 13;59(3):302-3.
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- 16. Johns NP, Johns J, Porasuphatana S, Plaimee P, Sae-Teaw M. Dietary intake of melatonin from tropical fruit altered urinary excretion of 6-sulfatoxymelatonin in healthy volunteers. J Agric Food Chem. 2013 Jan 30;61(4):913-9. PubMed
- 17. Yin X, Quan J, Kanazawa T. Banana prevents plasma oxidative stress in healthy individuals. Plant Foods Hum Nutr. 2008 Jun;63(2):71-6. PubMed
- 18. Rattanavichai W, Cheng W. Effects of hot-water extract of banana (Musa acuminata) fruit's peel on the antibacterial activity, and anti-hypothermal stress, immune responses and disease resistance of the giant freshwater prawn, Macrobrachium rosenbegii. Fish Shellfish Immunol. 2014 Aug;39(2):326-35. PubMed
- 19. Saleh Mansour Salah. Antibacterial Activity and UV Protection Property of Some Egyptian Cotton Fabrics Treated with AqueousExtract from Banana Peel. International Journal of Clothing Science 2012, 1(1): 1-6