Home › Content › Coffee & Health › Does Coffee Dehydrate You? Separating F…
Coffee & Health

Does Coffee Dehydrate You? Separating Fact from Myth

A balanced look at coffee, caffeine, and hydration.

Does Coffee Dehydrate You? Separating Fact from Myth

Coffee and Hydration

Coffee contributes fluid to your daily intake. Caffeine can have a mild diuretic effect, especially for people who are not used to it, but ordinary coffee consumption does not automatically cause dehydration.

The idea that coffee inevitably dehydrates you is an oversimplification. Coffee contains water and contributes to fluid intake. Caffeine can have a mild diuretic effect, but habitual coffee drinkers may develop some tolerance, and ordinary servings are not generally equivalent to losing all the fluid consumed.

Individual responses vary with caffeine sensitivity, serving size, health, and medications. If caffeine affects your sleep, causes jitters, or makes you uncomfortable, consider reducing the amount or choosing decaf. Water remains a simple everyday hydration choice, and anyone with a medical fluid restriction should follow their clinician's advice.

Step by Step

1

Step 1: Notice how much caffeinated coffee you usually drink.

Notice how much caffeinated coffee you usually drink.

2

Step 2: Include coffee as part of your overall fluid intake.

Include coffee as part of your overall fluid intake.

3

Step 3: Choose water regularly throughout the day.

Choose water regularly throughout the day.

4

Step 4: Reduce caffeine if it disrupts sleep or causes discomfort.

Reduce caffeine if it disrupts sleep or causes discomfort.

Frequently Asked Questions

Yes, coffee contributes fluid, although water is also a useful everyday choice.

It can have a mild diuretic effect, particularly at higher doses or in people less accustomed to caffeine.