“Stop Urinating at Night: Eat Bananas This Way” — Does It Work?
There is no good evidence that eating bananas in a particular way will stop nighttime urination (nocturia). Bananas are nutritious and provide potassium, but they aren’t an established treatment for nocturia.
Nighttime urination becomes more common with age and can have many causes, including increased urine production at night, an enlarged prostate, overactive bladder, diabetes, sleep problems, swollen legs, excessive evening fluids, and certain medications.
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Guy’s and St Thomas’ NHS Trust
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What may actually help
Reduce large amounts of fluid in the hours before bed, while still drinking adequately during the day.
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Guy’s and St Thomas’ NHS Trust
Reduce caffeine and alcohol, particularly in the evening.
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Guy’s and St Thomas’ NHS Trust
If your ankles swell, elevating your legs during the day can help move excess fluid back into circulation before bedtime.
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Guy’s and St Thomas’ NHS Trust
Review your medications with your doctor or pharmacist. Don’t change the timing or stop a medicine on your own.
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Guy’s and St Thomas’ NHS Trust
Keep a bladder diary for several days—recording drinks, urination, and nighttime awakenings can help identify the cause.
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Oxford Health NHS Foundation Trust
A word of caution about bananas
Bananas are normally a healthy food, but they’re relatively high in potassium. If you have kidney disease or take medicines that raise potassium—such as spironolactone—you may need to limit high-potassium foods.
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Guy’s and St Thomas’ NHS Trust
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If you’re regularly getting up two or more times a night, or the problem is new or worsening, it’s worth discussing with a healthcare professional rather than assuming it’s simply aging.
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Oxford Health NHS Foundation Trust
Bottom line: Enjoy bananas if you like them, but don’t rely on a “banana trick” to cure nocturia. Finding why you’re producing or passing urine at night is much more likely to solve the problem.
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