Evidence mapPaperPMID 42230994Full record

ArticleNature aging2026

Time-restricted feeding extends healthspan in both sexes and lifespan in male C57BL/6 J mice.

Samantha E Iiams, Nathan J Skinner, Mary Wight-Carter, Victoria A Acosta-Rodríguez, Carla B Green, Joseph S Takahashi

Abstract read
In one paragraph

Article in Nature aging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Samantha E Iiams *Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.ORCID http://orcid.org/0000-0001-7474-3825
Nathan J Skinner *Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Mary Wight-CarterAnimal Resource Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Victoria A Acosta-RodríguezDepartment of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA. victoria.acosta-rodriguez@nih.gov.ORCID http://orcid.org/0000-0002-4818-0667
Carla B GreenDepartment of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA. carla.green@utsouthwestern.edu.
Joseph S TakahashiDepartment of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA. joseph.takahashi@utsouthwestern.edu.ORCID http://orcid.org/0000-0003-0384-8878

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Time-restricted feeding (TRF) aligned with an organism's circadian rhythm has been shown to improve health, but its long-term effects on healthspan and lifespan in mammals, especially under standard dietary conditions that do not promote obesity, remain unclear. Here, we examined the impact of 12-h and 8-h nightly TRF windows in 264 male and 264 female C57BL/6 J mice fed regular chow. TRF improved multiple health measures, including behavioral rhythmicity, body weight and composition, frailty, and disease onset. These effects were most pronounced in the 8-h TRF group, which exhibited voluntary caloric restriction in addition to time restriction. A composite Healthspan Index revealed that TRF extended healthspan in both sexes, though the benefits were more prolonged in female mice relative to their total lifespan. Median lifespan was significantly extended in male mice under 8-h TRF by 12%, whereas female mice showed no significant lifespan extension. These results demonstrate sex-specific effects of TRF on mammalian aging.

Indexed as

AgingLongevityAnimalsBody WeightCaloric RestrictionCircadian RhythmFemaleIntermittent FastingMaleMiceMice, Inbred C57BLSex Factors

Identifiers

PMID42230994
PMCPMC13303084

What Socratic holds

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LicenceCC BY
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Registered trials

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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.