# Caloric restriction and biological age

2 papers in the library, strongest Strong.

**Graded Strong**: Pooled analysis of seven randomized caloric restriction trials with 829 adults, though the outcome was a composite biomarker index rather than clinical aging outcomes.

## Papers (2)

- [Cutting Calories Improves Aging Markers, Only Half From Weight Loss](https://longevity-austria.com/en/research/cutting-calories-improves-aging-markers-only-half-from-weight-loss) · Strong · n = 829 · 2026 · GeroScience
- [Caloric Restriction Slows Aging Most in the Heart and Metabolism](https://longevity-austria.com/en/research/caloric-restriction-slows-aging-most-in-the-heart-and-metabolism) · Strong · n = 185 · 2026 · Clinical nutrition (Edinburgh, Scotland)

## How this map is computed

A mark's size is the number of papers we hold on that pairing. It is a count, not a weighting by study design or sample size.

The fill shows the strongest grade in the cell. One Strong paper among four Preliminary ones still fills it dark, so open the cell to see the rest.

Grades and verdicts are assigned by a named person, never by counting.

An empty cell is a finding: nobody in our library has run that trial yet.

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_Canonical: https://longevity-austria.com/en/evidence/caloric-restriction/biological-age · Part of Longevity Cities_