Evidence map›Paper›PMID 40783537›Full record

ArticleLipids in health and disease2025

Global variations in omega-3 fatty acid status and omega-6:omega-3 ratios: insights from > 500,000 whole-blood dried blood spot samples.

Martina Torrissen, Emmalee Gisslevik, Thomas E Gundersen, Tore Bolstad, Ola Eide, Angela Maria Rizzo, Paul Clayton, Colin Robertson

Abstract read
In one paragraph

Article in Lipids in health and disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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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

8 authors.

Martina Torrissen *Bioactive Foods AS, Vestby, Norway.
Emmalee Gisslevik *Zinzino Operations AB, Mölndal, Sweden.
Thomas E GundersenVitas AS, Oslo, Norway.
Tore BolstadVitas AS, Oslo, Norway.
Ola EideAkobe AS, Viken, Norway.
Angela Maria RizzoDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Paul ClaytonInstitute of Interdisciplinary Medicine, Moscow, Russia.
Colin RobertsonZinzino Operations AB, Mölndal, Sweden. crobertson8@uclan.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Omega-3 (n-3) fatty acids are critical for human health, with the omega-6 (n-6) to n-3 fatty acid ratio and the omega-3 levels recognized as contributing to the risk of many chronic non-communicable diseases. Direct measurement of fatty acid levels in blood provides the most accurate assessment of fatty acid status and balance, with fingertip dried blood spot (DBS) analysis offering a practical and cost-effective assessment method. This study analyses more than 590,000 globally sourced DBS samples, providing fatty acid profiles in whole blood across diverse populations. Results reveal significant global and demographic disparities in n-3 levels and n-6:n-3 ratios, with suboptimal n-3 levels and imbalanced n-6:n-3 ratios prevalent worldwide. While the findings align with general trends reported in previous global mapping studies on omega-3 status in red blood cells (RBC), they are based on whole blood measurements and highlight the utility of DBS testing for large-scale monitoring. These results underscore the need to enhance n-3 fatty acid intakes to help mitigate multiple global health challenges and demonstrate the utility of fingertip DBS testing as a practical approach to design dietary interventions to promote overall well-being.

Indexed as

Dried Blood Spot TestingFatty Acids, Omega-3Fatty Acids, Omega-6AdultErythrocytesFemaleHumansMaleMiddle AgedFatty Acids, Omega-3Fatty Acids, Omega-6BiomarkersCrowd scienceDried blood spotHuman biomonitoringLarge-scale population healthOmega-3 fatty acidsOmega-6:omega-3 ratioPublic health surveillance

Identifiers

PMID40783537
PMCPMC12335782

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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.