Evidence map›Paper›PMID 25339342›Full record

Trial reportThe journal of headache and pain2014

Nutrition intervention for migraine: a randomized crossover trial.

Anne E Bunner, Ulka Agarwal, Joseph F Gonzales, Francesca Valente, Neal D Barnard

2 registry-linked trialsOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The journal of headache and pain, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 34 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 6 pooled it
3.1field-weighted citation impact, top 9% 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.

NCT01547494 nacompletednot on this map

A Nutritional Intervention for Migraines

TypeinterventionalSponsorPhysicians Committee for Responsible MedicineRan2011 to 2012Enrolled16ConditionsMigrainesArmsVegan Diet, mixture of omega3 and vitamins
NCT01699009 nacompletednot on this map

A Nutritional Intervention for Migraines-2

TypeinterventionalSponsorPhysicians Committee for Responsible MedicineRan2012 to 2014Enrolled24ConditionsMigrainesArmsPlant based diet, an unrestricted diet
3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 6 syntheses or guidelines pooled it, 79 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 3 institutions in 1 country.

Anne E BunnerPhysicians Committee for Responsible Medicine, 5100 Wisconsin Ave, NW, Suite 400, Washington, DC 20016, USA. abunner@pcrm.org.
Ulka Agarwal
Joseph F Gonzales
Francesca Valente
Neal D Barnard
Physicians Committee for Responsible Medicine · USCalifornia State University, East Bay · USGeorge Washington University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLimited evidence suggests that dietary interventions may offer a promising approach for migraine. The purpose of this study was to determine the effects of a low-fat plant-based diet intervention on migraine severity and frequency.

methodsForty-two adult migraine sufferers were recruited from the general community in Washington, DC, and divided randomly into two groups. This 36-week crossover study included two treatments: dietary instruction and placebo supplement. Each treatment period was 16 weeks, with a 4-week washout between. During the diet period, a low-fat vegan diet was prescribed for 4 weeks, after which an elimination diet was used. Participants were assessed at the beginning, midpoint, and end of each period. Significance was determined using student's t-tests.

resultsWorst headache pain in last 2 weeks, as measured by visual analog scale, was initially 6.4/10 cm (SD 2.1 cm), and declined 2.1 cm during the diet period and 0.7 cm during the supplement period (p=0.03). Average headache intensity (0-10 scale) was initially 4.2 (SD 1.4) per week, and this declined by 1.0 during the diet period and by 0.5 during the supplement period (p=0.20). Average headache frequency was initially 2.3 (SD 1.8) per week, and this declined by 0.3 during the diet period and by 0.4 during the supplement period (p=0.61). The Patient's Global Impression of Change showed greater improvement in pain during the diet period (p<0.001).

conclusionsThese results suggest that a nutritional approach may be a useful part of migraine treatment, but that methodologic issues necessitate further research.

trial registrationClinicaltrials.gov, NCT01699009 and NCT01547494.

Indexed as

Diet, Fat-RestrictedDiet, VegetarianAdultCross-Over StudiesDouble-Blind MethodFemaleHumansMaleMiddle AgedMigraine DisordersPain MeasurementTreatment Outcome

Identifiers

PMID25339342
PMCPMC4227630
OpenAlexW2124794779

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.