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the claim

Dietary restriction increases the average and maximum life span.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that dietary restriction increases the average and maximum life span?

Yes. Extensive scientific evidence across diverse model organisms consistently demonstrates that dietary and caloric restriction reliably extends both average and maximum lifespan.

Verdict: SUPPORTED · 7 sources for, 0 against · Last checked

The analysis

The claim is specific, empirical, and falsifiable, passing STEP 0. Multiple papers (0, 2, 3, 4, 6, 9, 11) explicitly support the well-established consensus that dietary and caloric restriction extends lifespan across various species and model organisms. There are no refuting papers in the provided set. Therefore, the balance verdict is SUPPORTED.

Evidence for · 7
Mutation accumulation underpins evolution of lifespan extension by dietary restriction
2025
Paper notes that dietary restriction extends lifespan across animals and plants.
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Irish, S. D., Kimberley, A., Immler, S., Moorad, J., & Maklakov, A. A. (2025). Mutation accumulation underpins evolution of lifespan extension by dietary restriction. doi.org. https://doi.org/10.1101/2025.06.18.660314

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More for · 6
Genetic regulation of fasting-induced longevity effects.
2026
Paper confirms that dietary interventions like caloric restriction extend lifespan in preclinical models.
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A, L., L, R., WH, S., AP, W., R, K., & GA, C. (2026). Genetic regulation of fasting-induced longevity effects.. doi.org. https://doi.org/10.1093/genetics/iyag045

Evolutionary causes of lifespan extension by dietary restriction: linking theory and mechanisms
2020
Paper states that dietary restriction increases lifespan across a broad range of taxa.
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Travers, L. M., Carlsson, H., Duxbury, E. M. L., & Maklakov, A. A. (2020). Evolutionary causes of lifespan extension by dietary restriction: linking theory and mechanisms. doi.org. https://doi.org/10.1101/2020.01.14.904599

Genome-Wide Mechanisms of Lifespan Extension by Dietary Restriction in Yeast
2017
Paper evaluates genetic mechanisms of chronological lifespan extension by dietary restriction.
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Campos, S. E., Garay, E., Avelar-Rivas, J. A., Juárez-Reyes, A., & DeLuna, A. (2017). Genome-Wide Mechanisms of Lifespan Extension by Dietary Restriction in Yeast. doi.org. https://doi.org/10.1101/126797

Dietary restriction is evolutionarily conserved on the phenotypic and mechanistic level.
2026
Paper finds that dietary restriction is phenotypically conserved and increases longevity across various species.
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SL, G., LT, D., TI, G., & MJP, S. (2026). Dietary restriction is evolutionarily conserved on the phenotypic and mechanistic level.. doi.org. https://doi.org/10.1038/s44319-026-00875-5

WWP1 modulates metabolic adaptation in white adipose tissue but does not significantly modify caloric restriction-induced longevity in mice.
2026
Paper acknowledges that caloric restriction extends lifespan across diverse species.
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Y, N., K, M., K, Y., S, H., S, T., Y, M., M, K., & Y, H. (2026). WWP1 modulates metabolic adaptation in white adipose tissue but does not significantly modify caloric restriction-induced longevity in mice.. doi.org. https://doi.org/10.3389/fnut.2026.1846488

Multi-Tissue Metabolomic Signatures of Five Longevity Interventions Converge on Ergothioneine and Lipid Remodeling in Male UM-HET3 Mice
2026
Paper lists caloric restriction as a validated intervention that delays the pace of aging and extends lifespan.
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B, B., O, F., N, R., S, G., S, C., & RA, M. (2026). Multi-Tissue Metabolomic Signatures of Five Longevity Interventions Converge on Ergothioneine and Lipid Remodeling in Male UM-HET3 Mice. doi.org. https://doi.org/10.64898/2026.06.24.734388

What does the evidence say?

The claim is specific, empirical, and falsifiable, passing STEP 0. Multiple papers (0, 2, 3, 4, 6, 9, 11) explicitly support the well-established consensus that dietary and caloric restriction extends lifespan across various species and model organisms. There are no refuting papers in the provided set. Therefore, the balance verdict is SUPPORTED.

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