Caffeine ingestion and fluid balance: a review.
@article{Maughan2003CaffeineIA,
title={Caffeine ingestion and fluid balance: a review.},
author={Ronald J. Maughan and Jennifer Griffin},
journal={Journal of human nutrition and dietetics : the official journal of the British Dietetic Association},
year={2003},
volume={16 6},
pages={
411-20
},
url={https://api.semanticscholar.org/CorpusID:41617469}
}There would appear to be no clear basis for refraining from caffeine containing drinks in situations where fluid balance might be compromised and the most ecologically valid of the published studies offers no support for the suggestion that consumption of caffeine-containing beverages as part of a normal lifestyle leads to fluid loss in excess of the volume ingested or is associated with poor hydration status.
267 Citations
A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index.
- 2016
Medicine
BHI may be a useful measure to identify the short-term hydration potential of different beverages when ingested in a euhydrated state and was calculated as the amount of water retained after ingestion relative to that observed after the ingestion of still water.
The Effect of Caffeine Intake on Body Fluids Replacement After Exercise-Induced Dehydration
- 2020
Medicine
It is concluded that intake of an espresso coffee possibly impedes replacement of body fluids in mildly dehydrated healthy subjects following moderate exercise.
Sucrose and Sodium but not Caffeine Content Influence the Retention of Beverages in Humans Under Euhydrated Conditions.
- 2018
Medicine
The data highlight that the key drivers promoting differences in the fluid retention potential of beverages when euhydrated are energy density, likely through slowed fluid delivery to the circulation (carbohydrate content effect), or electrolyte content through improved fluid retention (sodium content effect).
Coffee with High but Not Low Caffeine Content Augments Fluid and Electrolyte Excretion at Rest
- 2017
Medicine
The data indicate that caffeine intake of 6 mg kg−1 in the form of coffee can induce an acute diuretic effect, while 3’mg kg+1 do not disturb fluid balance in healthy casual coffee drinking adults at rest.
Effect of fluid replacement with green tea on body fluid balance and renal responses under mild thermal hypohydration: a randomized crossover study
- 2023
Medicine, Environmental Science
The data indicate that ingestion of GT or an equivalent caffeine amount does not worsen the hydration level 2 h after ingestion and can be effective in reducing the negative fluid balance for acute recovery from mild hypohydration.
Caffeine and the kidney: what evidence right now?
- 2007
Medicine
A preliminary conclusion is reached that, as yet, there is no evidence contraindicating the consumption of the equivalent of 3 to 4 cups of coffee per day in healthy or nephropathic subjects, but particular attention should be paid to the elderly, children, and patients on concomitant treatment with analgesics or diuretics.
Total body water and its compartments are not affected by ingesting a moderate dose of caffeine in healthy young adult males.
- 2013
Medicine
Findings indicate that a moderate caffeine dose, equivalent to approximately 5 espresso cups of coffee or 7 servings of tea, does not alter TBW and fluid distribution in healthy men, regardless of body composition, PA, or daily water ingestion.
Energy beverages: content and safety.
- 2010
Medicine
Evidence regarding the effects of EBs is summarized, and practical recommendations are made to help in answering the patient who asks, "Is it safe for me to drink an energy beverage when I exercise?"
34 References
Coffee consumption and total body water homeostasis as measured by fluid balance and bioelectrical impedance analysis.
- 1997
Medicine
To investigate the impact of coffee consumption on fluid balance, 12 healthy volunteers were supplied with a standardized diet for 2 days after having abstained from consumption of methylxanthines for 5 days and urine excretion was elevated and urinary excretion of sodium and potassium was elevated.
Metabolic and exercise endurance effects of coffee and caffeine ingestion.
- 1998
Medicine
One cannot extrapolate the effects of Caf to Cof; there must be a component(s) of Cof that moderates the actions of Caf.
The diuretic effects of alcohol and caffeine and total water intake misclassification
- 2004
Medicine, Environmental Science
Future studies of water–disease relationships, especially those intending to compare extremes of total water intake, should consider caffeine- and alcohol-related misclassification bias.
Caffeine vs Caffeine-Free Sports Drinks: Effects on Urine Production at Rest and During Prolonged Exercise
- 1997
Medicine
CAFF consumed in CE during moderate endurance exercise apparently does not compromise bodily hydration status and plasma catecholamine concentrations were greater during exercise than rest and may have counteracted the diuretic effect of caffeine observed at rest.
The pharmacology of caffeine.
- 1987
Medicine
The pharmaceutical properties of caffeine described in this report explain its use in drugs used as stimulants, pain relievers, diuretics, cold remedies, weight control products, bronchial and cardiac stimulants as well as in drugs for the treatment of acne and other skin disorders.
The Effect of Caffeinated, Non-Caffeinated, Caloric and Non-Caloric Beverages on Hydration
- 2000
Medicine
The across-treatment weight loss observed suggests that optimal fluid intake may be higher than common recommendations, and advising people to disregard caffeinated beverages as part of the daily fluid intake is not substantiated by the results of this study.
Effects of caffeine on plasma renin activity, catecholamines and blood pressure.
- 1978
Medicine
Under the conditions of study caffeine was a potent stimulator of plasma renin activity and adrenomedullary secretion and whether habitual ingestion has similar effects remains to be determined.
Water and electrolyte replenishment in the exercising child.
- 1996
Medicine, Environmental Science
This article reviews studies on children's sweating rates and composition, voluntary drinking patterns during prolonged exercise in the heat, taste perception of beverages, and the importance of fluid flavor and composition in preventing voluntary dehydration and found grape-flavored water was sufficient to prevent voluntary dehydration.
Water: an essential but overlooked nutrient.
- 1999
Environmental Science, Medicine
Caffeine‐Induced Diuresis and Atrial Natriuretic Peptides
- 1990
Medicine
By using a new and sensitive assay for plasma ANF, it was not found that caffeine-induced diuresis is mediated by ANF.

