Evidence map›Paper›PMID 33806218›Full record

ReviewNutrients2021

Importance of EPA and DHA Blood Levels in Brain Structure and Function.

Clemens von Schacky

Open access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 3 pooled it
11.2field-weighted citation impact, top 1% 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

72 citing papers in PubMed, 3 syntheses or guidelines pooled it, 155 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Review
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  11. Article
  12. Review
  13. Article
  14. Physiological and Metabolic Effects ofAnimals : an open access journal from MDPI · 2026
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Frontiers in nutrition · 2026
    Article
  20. Review

12 more citing papers are in PubMed but not listed here.

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

1 author.

Clemens von SchackyOmegametrix, Martinsried, Am Klopferspitz 19, 82152 Martinsried, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brain structure and function depend on a constant and sufficient supply with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) by blood. Blood levels of EPA and DHA reflect dietary intake and other variables and are preferably assessed as percentage in erythrocytes with a well-documented and standardized analytical method (HS-Omega-3 Index

Indexed as

BrainDocosahexaenoic AcidsEicosapentaenoic AcidHumansDocosahexaenoic AcidsEicosapentaenoic Acidbiomarkerdocosahexaenoic acideicosapentaenoic acidomega-3 index

Identifiers

PMID33806218
PMCPMC8066148
OpenAlexW3145732841

What Socratic 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 Socratic graph.