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Registry update — unassessed

Efficacy of an Omnivorous Versus a Vegan Diet in the Prevention or Treatment of Sarcopenia in Chilean Adults Following a Strength Training Program

Trial registry update: COMPLETED. No results reported in the supplied registry record.

OBSERVATIONALMinor significance
Reporter brief

What this changes

The finding has not established an approved change to our evidence assessment.

Source date: Oct 8, 2026 · Discovered: Oct 8, 2026 · Assessed: — · Research update

What it does not prove

  • Non-randomized assignment introduces selection bias: participants self-selected their group and diet, so differences between groups may reflect initial characteristics rather than training effects
  • No sample size, effect sizes, or specific outcomes reported in the abstract, preventing assessment of whether changes were clinically or statistically meaningful
  • Observational design cannot establish causation; diet type was not experimentally manipulated, so claims about diet efficacy rely on post-hoc comparisons of self-selected groups

Extracted from supplied source material; model confidence is not a measured probability of correctness.

Design
Observational
Sample size
—
Duration
16 months
Population
Chilean adults stratified by diet type (vegan or omnivorous) and assigned to intervention or control groups based on their own choice and convenience. Specific age range, sample size, and other demographic details are not reported in the abstract.
Primary outcome
Prevention or treatment of sarcopenia (as indicated in the title; specific outcome measures are not detailed in the abstract)
Effect size
—
Significance
Not reported
Journal
Universidad de Concepcion
Published
Oct 8, 2026

Recorded source passages

Abstract or registry material supplied for assessment; source version 1. This is not a claim of full-text review.

The study consisted of a non-randomized controlled clinical trial with measurements at baseline and at the end of a 16 week intervention.
Participants will be assigned to the intervention or control group according to their own choice and convenience.
A 4 arm split was performed where the Veg-Int group was composed of people on a vegan diet who participated in the intervention, the Veg-Con group was composed of people on a vegan diet who were part of the control group, the Omn-Int group was composed of people on an omnivorous diet who participated in the intervention, and the Omn-Con group was composed of people on an omnivorous diet who were part of the control group.
The Veg-Int and Omn-Int intervention groups, participated in a physical exercise program in remote modality through a digital mHealth platform. During the 16 weeks of intervention, a total of 50 training sessions were carried out, distributed in three sessions per week, with a duration per session ranging from 40 to 50 minutes.

Assessment history

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