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Conclusion

Recent scientific evidence confirms that moderate consumption of caffeinated beverages, including coffee, does not lead to dehydration. Advice to abstain from drinking moderate amounts of caffeinated coffee, in order to maintain adequate fluid balance, is unfounded.

Caffeine, hydration and exercise performance

References

Latest research

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Fluid balance

Effects of multiple fluid intake on Urolithiasis by mendelian randomization study

Q Zhang et al, 2024. Effects of multiple fluid intake on Urolithiasis by mendelian randomization study, Scientific Reports.

October 16, 2024

Fluid balance

The association between wet overactive bladder and consumption of tea, coffee, and caffeine: Results from 2005-2018 National Health and Nutrition Examination Survey

F Tang et al, 2024. The association between wet overactive bladder and consumption of tea, coffee, and caffeine: Results from 2005-2018 National Health and Nutrition Examination Survey, Clinical Nutrition, Volume 43 (6).

May 1, 2024

Fluid balance

J M Miller et al, 2022. Fluids affecting bladder urgency and lower urinary symptoms: results from a randomized controlled trial, International Journal of Urogynecology

April 21, 2022

Information campaigns

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Fluid balance

Fluid balance: Factsheet

Water makes up about sixty percent of body weight. As every system in the body depends on the availability of fluids, even mild dehydration can impair bodily functions and performance.

Factsheets

January 1, 2015

Fluid balance

Fluid balance: Factsheet

Water makes up about sixty percent of body weight. As every system in the body depends on the availability of fluids, even mild dehydration can impair bodily functions and performance.

Factsheets

January 1, 2015

Fluid balance

Fluid balance vodcast

There are widespread guidelines on the amount and types of fluid we should be drinking in order to remain well hydrated. We’re often told to drink 2 litres of fluids a day and limit our consumption of caffeinated beverages, including coffee

Video/audio

July 24, 2012

Fluid balance

Fluid balance vodcast

Video/audio

July 24, 2012