Evidence map›Paper›PMID 41683343›Full record

Trial reportNutrients2026

Vitamin D in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome After COVID-19 or Vaccination: A Randomized Controlled Trial.

Shinichiro Kodama, Mitsuko Nakata, Nafuko Konishi, Masato Yoshino, Akinori Fujisawa, Mutsuo Naganuma, Yuki Kobayashi, Yuriko Hirai, Akiko Kitagawa, Mariko Miyokawa and 3 more

Abstract readRandomized Controlled TrialMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Nutrients, 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

13 authors.

Shinichiro KodamaKodama Clinic, Hyogo 6650842, Japan.ORCID 0009-0007-7882-1692
Mitsuko NakataDepartments of Biostatistics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan.ORCID 0000-0003-2401-0628
Nafuko KonishiViola Clinic, Osaka 5300044, Japan.
Masato YoshinoKamata Yoshino Clinic, Tokyo 1440052, Japan.
Akinori FujisawaHonbetsu Cardiovascular Medicine Clinic, Hokkaido 0893314, Japan.ORCID 0009-0009-0483-505X
Mutsuo NaganumaTokachi Mutsumino Clinic, Hokkaido 0800020, Japan.
Yuki KobayashiKobayashi Clinic, Hyogo 6580048, Japan.
Yuriko HiraiMCL Corporation, Kyoto 6008191, Japan.ORCID 0000-0003-4639-3463
Akiko KitagawaKitaris Co., Ltd., Aichi 4820018, Japan.
Mariko MiyokawaKitaris Co., Ltd., Aichi 4820018, Japan.
Ryo MishimaThe Clinical and Translational Research Center, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan.
Satoshi TeramukaiDepartments of Biostatistics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan.ORCID 0000-0003-2184-0597
Masanori FukushimaFoundation of Learning Health Society Institute, Nagoya 4500003, Japan.ORCID 0000-0002-5456-3891

Funding

Japanese Society for Vaccine Related Complications n/a
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

COVID-19COVID-19 VaccinesFatigue Syndrome, ChronicVaccinationVitamin DVitamin D DeficiencyAdultDietary SupplementsFemaleHumansMaleMiddle AgedSARS-CoV-2Treatment OutcomeVitaminsCOVID-19 VaccinesVitamin DVitaminsCOVID-19COVID-19 vaccineLong COVIDmyalgic encephalomyelitis/chronic fatigue syndromePASCpost-vaccination syndromevitamin D

Identifiers

PMID41683343
PMCPMC12899809

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.