Evidence map›Paper›PMID 31247980›Full record

Trial reportNutrients2019

Flavanol Bioavailability in Two Cocoa Products with Different Phenolic Content. A Comparative Study in Humans.

Miren Gómez-Juaristi, Beatriz Sarria, Sara Martínez-López, Laura Bravo Clemente, Raquel Mateos

Open access · goldAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Miren Gómez-JuaristiDepartment of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Novais 10, 28040 Madrid, Spain.
Beatriz SarriaDepartment of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Novais 10, 28040 Madrid, Spain. beasarria@ictan.csic.es.
Sara Martínez-LópezDepartment of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Novais 10, 28040 Madrid, Spain.
Laura Bravo ClementeDepartment of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Novais 10, 28040 Madrid, Spain. lbravo@ictan.csic.es.
Raquel MateosDepartment of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Novais 10, 28040 Madrid, Spain. raquel.mateos@ictan.csic.es.
Instituto de Ciencia y Tecnología de Alimentos y Nutrición · ESConsejo Superior de Investigaciones Científicas · ES

Funding

Ministerio de Economía y Competitividad AGL2010-18269; AGL2015-69986-R
6 · The paper itself

Abstract

Cocoa has beneficial health effects partly due to its high flavanol content. This study was aimed at assessing the absorption and metabolism of polyphenols in two soluble cocoa products: a conventional (CC) and a flavanol-rich product (CC-PP). A crossover, randomized, blind study was performed in 13 healthy men and women. On two different days, after an overnight fast, volunteers consumed one serving of CC (15 g) or CC-PP (25 g) in 200 mL of semi-skimmed milk containing 19.80 mg and 68.25 mg of flavanols, respectively. Blood and urine samples were taken, before and after CC and CC-PP consumption, and analyzed by high-performance liquid chromatography coupled to electrospray ionisation and quadrupole time-of-flight mass spectrometry (HPLC-ESI-QToF-MS). Up to 10 and 30 metabolites were identified in plasma and urine, respectively. Phase II derivatives of epicatechin were identified with kinetics compatible with small intestine absorption, although the most abundant groups of metabolites were phase II derivatives of phenyl-γ-valerolactone and phenylvaleric acid, formed at colonic level. 5-(4'-Hydroxyphenyl)-γ-valerolactone-sulfate could be a sensitive biomarker of cocoa flavanol intake. CC and CC-PP flavanols showed a dose-dependent absorption with a recovery of 35%. In conclusion, cocoa flavanols are moderately bioavailable and extensively metabolized, mainly by the colonic microbiota.

Indexed as

Gastrointestinal MicrobiomeAdministration, OralAdultBacteriaBeveragesBiological AvailabilityChocolateColonCross-Over StudiesFemaleFlavonolsHumansIntestinal AbsorptionMaleMetabolic Detoxication, Phase IISingle-Blind MethodFlavonolsbioavailabilitycolonic bacteriaflavanolshumanliquid chromatography coupled to electrospray ionisation and quadrupole time-of-flight mass spectrometry (LC-ESI-QToF-MS)plasma nutrikineticssoluble cocoa products

Identifiers

PMID31247980
PMCPMC6683251
OpenAlexW2955095738

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.