Cited by 55Coffee research and impactsThermoregulation and physiological responsesBlood Pressure and Hypertension Studies

Coffee with High but Not Low Caffeine Content Augments Fluid and Electrolyte Excretion at Rest

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Seal, Adam D., Bardis, Costas N., Gavrieli, Anna, Grigorakis, Petros, Adams, J. D., Arnaoutis, Giannis, Yannakoulia, Mary, Kavouras, Stavros A.·2017·Frontiers in Nutrition

Abstract

Background: Low levels of caffeine ingestion do not induce dehydration at rest, while it is not clear if larger doses do have an acute diuretic effect. The aim of the present investigation was to examine the acute effect of low and high levels of caffeine, via coffee, on fluid balance in habitual coffee drinkers (at least one per day) at rest. Methods: Ten healthy adults (8 males and 2 females; age: 27±5 y, weight: 89.5±14.8 kg, height: 1.75±0.08 m, and body mass index: 29.1±4.4 kg∙m-2) ingested 200 mL of water (W), coffee with low caffeine (3 mg∙kg-1, LCAF), or coffee with high caffeine (6 mg∙kg-1, HCAF) on three respective separate occasions. All sessions were performed at 09:00 in the morning in a counterbalanced, crossover manner, at least 5 days apart. Subjects remained in the laboratory while urine samples were collected every 60 min for three hours post-ingestion. Results: Absolute caffeine consumption was 269±45 and 537±89 mg for the LCAF and HCAF, respectively. Coffee ingestion at the HCAF trial induced greater diuresis during the 3-h period (613±101 mL, P < 0.05), when compared to W (356±53 mL) and LCAF (316±38 mL). Additionally, cumulative urinary osmotic excretion was significantly greater in the HCAF (42592 mmol, P < 0.05), as compared to the W (24936 mmol) and LCAF (17716 mmol) trials. Conclusion: 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.

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Crossref · 10.3389/fnut.2017.00040

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  • Individuals with obesity frequently have biochemical evidence of deficiencies of micronutrients including vitamin D, vitamin B12, folate, thiamine, iron, and zinc.

    “For example, individuals with obesity are frequently found to have biochemical evidence of deficiencies of micronutrients, including vitamin D, vitamin B12, folate, thiamine, iron, and zinc [80][81][82][83].”

    From Nutritional considerations with antiobesity medications (2024) · cites this paper as [81]

    The Introduction discusses coffee, hydration, and an association between coffee consumption and obesity; the Participants section describes the study group. Neither addresses biochemical micronutrient deficiencies in people with obesity. Searches for the listed vitamins and minerals and for obesity-related micronutrient deficiencies found no supporting passage in our copy. (LLM, conf=0.76)

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Authors
Seal, A. D., Bardis, C. N., Gavrieli, A., Grigorakis, P., Adams, J. D., Arnaoutis, G., Yannakoulia, M., & Kavouras, S. A.
Affiliations
  • University of Arkansas at Fayetteville (US)
  • Harokopio University of Athens (GR)
Corresponding author
Kavouras, Stavros A.
Venue
Frontiers in Nutrition
Published
2017-08-18
Volume
4
Pages
40-40
ISSN
2296-861X (ISSN-L)
OpenAlex
W2745453275
Cited by
55
References
31
Citations by year
2026: 7 · 2025: 12 · 2024: 5 · 2023: 12 · 2022: 2 · 2021: 6 · 2020: 8 · 2018: 3
FWCI
2.10
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Nutrition (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
Keywords
caffeine, coffee, diuresis, fluid balance, electrolyte excretion, dehydration

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