Evidence map›Paper›PMID 41344001›Full record

Trial reportThe journal of nutrition, health & aging2026

Do the effects of krill oil supplementation on skeletal muscle function and size in older adults differ by sex, age or BMI: A secondary analysis of a randomised controlled trial.

Oliver Hayman, Saleh Aa Alkhedhairi, Emile Combet, Terry J Quinn, Angus M Hunter, Stuart Goodall, Stuart R Gray

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in The journal of nutrition, health & aging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04048096 (Effects of Krill Oil Supplementation on Muscle Function in Older Adults), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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.

NCT04048096 nacompletednot on this map

Effects of Krill Oil Supplementation on Muscle Function in Older Adults

TypeinterventionalSponsorUniversity of GlasgowRan2018 to 2020Enrolled102ConditionsAging, SarcopeniaArmsKrill Oil, Placebo
3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Trial
  2. Review
  3. 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

7 authors.

Oliver HaymanSchool of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom; Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia.
Saleh Aa AlkhedhairiSchool of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom; Department of Medical Biosciences, College of Veterinary Medicine, Qassim University, Saudi Arabia.
Emile CombetSchool of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Terry J QuinnSchool of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Angus M HunterDepartment of Sport Science, Nottingham Trent University, Nottingham, United Kingdom.
Stuart GoodallSchool of Sport, Exercise, & Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom.
Stuart R GraySchool of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom; Institute of Sports Science and Innovation, Lithuanian Sports University, Lithuania. Electronic address: stuart.gray@glasgow.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study examined whether the effects of krill oil supplementation on muscle function and size differ by sex, age or BMI in healthy older adults. This was a secondary exploratory analysis of a previous randomised controlled trial. Men and women aged ≥65 years, with BMI < 35 kg/m² and engaging in <1 h per week of structured exercise, were enrolled in a randomised, double-blind, controlled trial (NCT04048096) between March 2018 and March 2020. Participants received either 4 g/day krill oil or a control oil for 6 months. Ninety-four participants were included (Control n = 45; 27 women, 18 men; Krill n = 49; 26 women, 23 men) with muscle size, strength and neuromuscular function measured before and after the intervention period. Responses to intervention were compared between subgroups by sex (male/female), age (≤70 years/>70 years) and BMI (≤24.9 kg/m

Indexed as

Body Mass IndexDietary SupplementsEuphausiaceaMuscle, SkeletalMuscle StrengthAgedAge FactorsAnimalsDouble-Blind MethodFemaleHumansMaleSex FactorsAgeingOmega-3SarcopeniaSex differencesStrength

Identifiers

PMID41344001
PMCPMC12720336

What OpenQuestion holds

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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.