The Claim
In non-obese adults, sustained 25% caloric restriction over a 2-year period is associated with a 3% reduction in the pace of biological aging as measured by the DunedinPACE DNA methylation clock, but no significant effects were observed on other biological aging measures such as PhenoAge and GrimAge.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
If healthy-weight adults eat 25% less food for two years, it might slow down how fast their body ages—based on a special aging test—though not all aging tests showed a change.
See the scientific wording
In non-obese adults, 25% caloric restriction for 2 years is associated with a 3% slowing in the pace of biological aging as measured by the DunedinPACE DNA methylation clock, suggesting a potential impact on aging processes, though effects on other biological age measures like PhenoAge and GrimAge were not significant.
When a person eats 25% fewer calories for two years, their cells detect less energy and change how they mark their DNA with chemical tags. These tags turn down genes that drive inflammation and tissue damage while turning up genes that repair cells and clean up waste. This shifts the body’s aging speed, making it slow down in a way that can be measured by a specific DNA pattern called DunedinPACE.
What the research says
1 studyIf healthy people eat 25% less food for two years without getting malnourished, one special test shows their bodies age a little slower—about 3%—even though other aging tests didn’t notice a change.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.