Evidence mapPaperPMID 42355422Full record

ArticleLife (Basel, Switzerland)2026

Impact of a Mediterranean Diet Supplemented with Extra Virgin Olive Oil on Gut Microbiota in Fibromyalgia: A Randomized Controlled Trial.

Elena Durán González, Jorge Antolín Ramírez Tejero, Ismael San Mauro Martín, Ana Terrén Lora, Marta Pérez Sánchez, Rosa Gómez Morano, Claudia Díaz López, Antonio Martínez Lara, Marta Aguilar Díaz, David Cotán Marín

Abstract read
In one paragraph

Article in Life (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Elena Durán GonzálezPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.ORCID 0000-0003-0637-1761
Jorge Antolín Ramírez TejeroPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.ORCID 0000-0002-6551-1712
Ismael San Mauro MartínCentros de Investigación en Nutrición y Salud (CINUSA Group), Research Department, Paseo de la Habana 43, 28020 Madrid, Spain.ORCID 0000-0001-5873-0012
Ana Terrén LoraCentros de Investigación en Nutrición y Salud (CINUSA Group), Research Department, Paseo de la Habana 43, 28020 Madrid, Spain.ORCID 0000-0002-8410-301X
Marta Pérez SánchezPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.
Rosa Gómez MoranoPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.ORCID 0009-0009-5104-7822
Claudia Díaz LópezPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.
Antonio Martínez LaraPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.
Marta Aguilar DíazIndependent Researcher, 46007 Valencia, Spain.
David Cotán MarínPronacera, Avenida de la Ingeniería 9, Local 34, Parque Empresarial Arte Sacro (PEASS), 41015 Seville, Spain.

Funding

Centre for Industrial Technological Development IDI-20210749
6 · The paper itself

Abstract

Fibromyalgia is a chronic syndrome associated with pain, fatigue, and cognitive symptoms, often linked to gut microbiota alterations. The Mediterranean Diet (MD), particularly extra-virgin olive oil (EVOO), has antioxidant and anti-inflammatory properties that may beneficially modulate the microbiota. We conducted a prospective, randomized, double-blind, placebo-controlled clinical trial that included 250 women (206 with fibromyalgia, 44 controls). Participants followed a MD supplemented with EVOO or refined olive oil (placebo) for six months. Microbiota composition was analyzed at four time points (T0-T3) by 16S rRNA sequencing (V3-V4). At baseline, fibromyalgia patients exhibited reduced microbial diversity compared to controls. While global diversity did not change after intervention, specific taxa increased significantly with EVOO, including

Indexed as

bacteriadietfibromyalgiamicrobiomemicrobiotaolive oiloxidationpolyphenols

Identifiers

PMID42355422
PMCPMC13301056

What Socratic holds

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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 Socratic graph.