# Eating less protein may slow aging: Review of \>350 studies

**URL:** <https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419>\
**Category:** General\
**Created:** [November 12, 2026, 4:33pm UTC](https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419 "2026-11-12T16:33:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![WJ\_PhD](https://www.rapamycin.news/user_avatar/www.rapamycin.news/wj_phd/32/19266_2.png) [@WJ\_PhD](https://www.rapamycin.news/u/WJ_PhD)\
**Post date:** [November 12, 2026, 4:33pm UTC](https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419/1 "2026-11-12T16:33:09Z")

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Summary article:

> **[Eating less protein could slow aging, review of 350 studies finds](https://www.sciencedaily.com/releases/2026/11/261108203714.htm)**
>
> A major review of more than 350 studies suggests that eating less protein could slow aging, improve metabolic health, and potentially extend lifespan, challenging the widespread belief that more protein is always better. Researchers warn that many...

Cell paper link:

[https://www.cell.com/cell-press-blue/fulltext/S3051-3839(26)00077-0](https://www.cell.com/cell-press-blue/fulltext/S3051-3839(26)00077-0)

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**Author:** ![qBx123Yk](https://www.rapamycin.news/letter_avatar_proxy/v4/letter/q/a6a055/32.png) [@qBx123Yk](https://www.rapamycin.news/u/qBx123Yk)\
**Post date:** [November 12, 2026, 5:38pm UTC](https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419/2 "2026-11-12T17:38:57Z")

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Let’s keep in mind some caveats and nuances. From the paper:

> There remain many unknowns about the optimal levels of protein intake. While many individuals are likely eating substantially more than the RDA for protein and could benefit from protein or amino acid restriction, some individuals may have a greater demand for protein. These include pregnant women, growing children, individuals who are eating a restricted number of calories, and individuals recovering from injuries, and restricting protein or specific amino acids could potentially be harmful for these groups. Many elderly individuals are protein deficient due to factors such as decreased appetite, financial constraints, and social isolation,[361](https://www.cell.com/cell-press-blue/fulltext/S3051-3839(26)00077-0#) and protein or amino acid restriction could move these individuals into a protein- or amino acid-insufficient state. Finally, those who are exercising may have higher protein needs or at least be able to consume higher levels of protein or specific amino acids without metabolic risk.

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**Author:** ![WJ\_PhD](https://www.rapamycin.news/user_avatar/www.rapamycin.news/wj_phd/32/19266_2.png) [@WJ\_PhD](https://www.rapamycin.news/u/WJ_PhD)\
**Post date:** [November 12, 2026, 6:58pm UTC](https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419/3 "2026-11-12T18:58:11Z")

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I definitely agree. The BCAAs, at least for me, seem to be potentially the worst culprits in terms of anabolic properties as well as Met. Some growth is good, too much is bad in terms of longevity.

It does also point out the importance of the hormone FGF21 and how eating less protein elevates FGF21 which is linked with longevity.

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**Author:** ![revenant](https://www.rapamycin.news/letter_avatar_proxy/v4/letter/r/46a35a/32.png) [@revenant](https://www.rapamycin.news/u/revenant)\
**Post date:** [November 12, 2026, 7:00pm UTC](https://www.rapamycin.news/t/eating-less-protein-may-slow-aging-review-of-350-studies/27419/4 "2026-11-12T19:00:33Z")

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> Other studies have demonstrated that higher protein intake can support weight loss and help older adults preserve muscle mass, particularly when combined with physical activity. Maintaining muscle becomes increasingly important with age because muscle loss can contribute to weakness, reduced mobility, and a greater risk of falls.

It is worth emphasizing that the longevity benefit of reduced protein intake described in this study applies primarily to sedentary people under 65. Older people (most of those on this board?) do not want to reduce their protein intake. Sarcopenia and falling down will not increase your longevity!