Does coffee cause more urination than water?

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If you drink your coffee on the way to the office, you'll inevitably have to use the restroom again before you reach your destination.

If this sounds familiar, you've likely concluded that your morning beverage is responsible. But does coffee cause more urination than water, or is this a myth?

Yep, it does… Therefore, if you replace your morning cup of coffee with an equal volume of plain water, you will likely urinate less.

One reason for this is that even though water makes up the majority of coffee, it contains an ingredient called caffeine that stimulates the kidneys to release more urine.

A standard cup of coffee does contain a fair amount of caffeine, which is a (godsend) stimulant and a diuretic.

Some medications, known as diuretics, are used to stimulate the production of more urine by flushing excess sodium and chloride out of the body.

In turn, the sodium and chloride draw excess water from the body, resulting in an increase in urine volume.

Caffeine's diuretic action is a major factor in why coffee causes increased bathroom visits, but it's not the only one.

Caffeine's diuretic effect causes the bladder to fill up, and the stimulant properties irritate the bladder, causing it to contract, leading to an urgent need to urinate.

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