Evidence map›Paper›PMID 25339885›Full record

ArticleFrontiers in human neuroscience2014

The effect of alpha-linolenic acid supplementation on ADHD symptoms in children: a randomized controlled double-blind study.

Gal Dubnov-Raz, Zaher Khoury, Ilana Wright, Raanan Raz, Itai Berger

Open access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 5 pooled it
1.2field-weighted citation impact, top 21% 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

14 citing papers in PubMed, 5 syntheses or guidelines pooled it, 16 citations in OpenAlex.

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  14. Brain development and the attention spectrum.Frontiers in human neuroscience · 2015
    Article
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.

Gal Dubnov-RazLifestyle, Exercise and Nutrition Clinic, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center Tel Hashomer, Israel ; Sackler Faculty of Medicine, Tel Aviv University Tel Aviv, Israel.
Zaher KhouryFaculty of Medicine, Hadassah Medical Center - Hebrew University Jerusalem, Israel.
Ilana WrightLeumit Medical Services Netanya, Israel.
Raanan RazDepartment of Environmental Health, Harvard School of Public Health Boston, MA, USA.
Itai BergerThe Neuro-Cognitive Center, Pediatric Division, Hadassah Medical Center - Hebrew University Jerusalem, Israel.
Hadassah Medical Center · ILClalit Health Services · ILSheba Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAttention deficit-hyperactivity disorder (ADHD) is the most common neuro-developmental disorder in childhood. Its pharmacologic treatment mostly includes methylphenidate, yet many parents seek alternative, "natural," therapeutic options, commonly omega-3 fatty acids. Previous studies of supplementation with fish oil or long-chain omega-3 fatty acids to children with ADHD yielded mixed results. The use of alpha-linolenic acid (ALA), a medium-chained, plant-based omega-3 fatty acid (18:3 n-3), has not been sufficiently examined in this population.

methodsForty untreated children with ADHD, aged 6-16 years, were randomized to receive either 2 g/day of oil containing 1 g ALA or placebo, for 8 weeks. Before and after supplementation, the children underwent a physician assessment of ADHD symptoms and a computerized continuous performance functions test. The children's parents and teachers filled out Conners' and DSM questionnaires.

resultsSeventeen (42.5%) children completed the study, eight in the supplementation group, nine in the placebo group. Main drop-out reasons were capsule size, poor compliance, and a sense of lack of effect. No significant difference was found in any of the measured variables tested before and after supplementation, in both study groups. No between-group difference was found in the changes of the various measures of ADHD symptoms throughout the study period.

conclusionSupplementation of 2 g/day of oil containing 1 g ALA did not significantly reduce symptoms in children with ADHD. Future studies in this field should consider an alternative method to deliver the oil, a higher dose, and a larger sample size.

Indexed as

ADHDattentionfatty Acidshyperactivitylinolenic acidsomega-3

Identifiers

PMID25339885
PMCPMC4188038
OpenAlexW2160896950

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.