Trial reportEuropean journal of clinical nutrition2022
The influence of coffee consumption on bioelectrical impedance parameters: a randomized, double-blind, cross-over trial.
Trial report in European journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Measuring bioelectric impedance outputs following coffee consumption in healthy adults using an 8-electrode segmental BIA device.Journal of the International Society of Sports Nutrition · 2025Trial
- Evaluation of factors influencing food choices among Lebanese weightlifters and football players.Journal of the International Society of Sports Nutrition · 2026Article
- Phase angle and cellular health: inflammation and oxidative damage.Reviews in endocrine & metabolic disorders · 2023Review
- Association of the Bioimpedance Phase Angle and Quality of Life in Postmenopausal Osteoporosis.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2023Article
- Coffee consumption effects on bioelectrical impedance parameters: does gender matter?European journal of clinical nutrition · 2022Article
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBioelectrical impedance analysis (BIA) is a widely used method for estimating body composition. Avoiding foods/beverages containing caffeine is a frequently enforced pre-test protocol to ensure reliability of BIA measurements. However, few studies have evaluated whether this is necessary, with conflicting results. We aimed to determine whether the coffee consumption differing in caffeine content influences BIA parameters in healthy adults.
methodsTwenty-five healthy adults were enrolled in a randomized, double-blind cross-over trial. Three amounts of caffeine were given with 200 mL of coffee: 0 mg (11 g of decaffeinated), 200 mg (5.5 g of caffeinated plus 5.5 g of decaffeinated), and 400 mg of caffeine (11 g of caffeinated). BIA measurements were conducted at 6 different times, and coefficient variations (CV) explored.
resultsNo differences were observed for group × time interaction on impedance, resistance, or reactance (p > 0.05). Values of BIA parameters increased after 30-min of coffee consumption, independently of the caffeine dosage (all p < 0.001). Body fat percentage followed the same pattern and increased after 45-min (p < 0.05). Median CV for consecutive impedance, resistance, and reactance measurements were >95%CI of expected device measurement error over 70-min, without difference between groups. Urine output volume was not different between groups (decaffeinated: 440.45 ± 197.57 mL; 200 mg: 471.80 ± 171.88 mL; 400 mg: 489.30 ± 204.10 mL, p > 0.05).
conclusionCoffee consumption influenced BIA-derived results after 70-min but was not related to caffeine content, likely due to water intake.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.