Evidence map›Paper›PMID 42639474›Full record

ArticleCell press blue2026

The hallmarks of protein and amino acid restriction in aging and longevity.

Bailey A Knopf, Dudley W Lamming

Abstract read
In one paragraph

Article in Cell press blue, 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. Review
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

2 authors.

Bailey A KnopfDepartment of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA.
Dudley W LammingDepartment of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA.

Funding

Wisconsin Nathan Shock CenterP30AG092586 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI Rozalyn M. Anderson, JOHN M DENU · 2025 to 2026
$3.8M
Translational analysis of a novel intervention to promote healthy aging.R01AG085898 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI RICKI J COLMAN, Dudley William Lamming · 2024 to 2026
$3.2M
The regulation of health and longevity by branched-chain amino acidsR01AG056771 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI Dudley William Lamming · 2018 to 2026
$3.1M
The regulation of cancer and aging by methionineR01AG084156 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI VINCENT L. CRYNS, JOHN M DENU · 2023 to 2026
$2.5M
The regulation of health and longevity by branched-chain amino acidsRF1AG056771 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI LAMMING, DUDLEY WILLIAM · 2023 to 2023
$2.1M
Comparative analysis of geroprotective interventions in established and novel mouse models of Alzheimer's diseaseR01AG062328 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI LAMMING, DUDLEY WILLIAM, MERRINS, MATTHEW J. · 2018 to 2022
$2.0M
Safer mTOR inhibition for human geroprotectionU01AG081482 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI Adam R Konopka, Dudley William Lamming · 2023 to 2026
$1.8M
Understanding the roles of prolonged fasting, calorie intake, and mTORC1 in the response to calorie restrictionR01AG094153 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI Dudley William Lamming · 2025 to 2026
$1.2M
The regulation of health and longevity by branched-chain amino acidsR56AG056771 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI LAMMING, DUDLEY WILLIAM · 2017 to 2017
$573k
NIA NIH HHS P30 AG092586NIA NIH HHS R01 AG056771NIA NIH HHS R01 AG062328NIA NIH HHS R01 AG084156NIA NIH HHS R01 AG085898NIA NIH HHS R01 AG094153NIA NIH HHS R56 AG056771NIA NIH HHS RF1 AG056771NIA NIH HHS U01 AG081482
6 · The paper itself

Abstract

Despite widespread recommendations for higher protein intake during aging, increasing evidence suggests that dietary protein restriction (PR) promotes metabolic health, healthspan, and lifespan across diverse organisms. Mechanistic studies further demonstrate that restriction of specific amino acids, particularly methionine, isoleucine, and valine, recapitulates many of the benefits of PR, highlighting the specific amino acid composition of the diet as a key determinant of aging. Here, we define the hallmarks of PR through the lens of aging, examining how PR and restriction of specific essential amino acids impact metabolic health, nutrient sensing, senescence, mitochondrial function, and the epigenome. We also discuss the known and unknown roles of non-essential amino acids in healthy aging. Overall, this review provides a comprehensive overview of current knowledge regarding the benefits of PR and amino acid restriction for healthy aging and highlights the therapeutic potential of interventions based on these diets to promote healthspan and longevity.

Identifiers

PMID42639474
PMCPMC13501984

What OpenQuestion holds

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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 OpenQuestion graph.