Animal researchAnimal evidence
What a mouse lifespan experiment can—and cannot—tell us
Dietary restriction impacts health and lifespan of genetically diverse mice
Published
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PLAIN-LANGUAGE SUMMARY
What it found
Dietary restriction extended lifespan in these mice, while genetic differences strongly influenced survival. Changes in common health markers did not reliably predict lifespan.
Keep these limits in view
This is animal evidence, not proof that fasting extends human life. It cannot establish an autophagy timetable or a safe human fasting duration.
Understand the context
- Evidence type
- Randomized animal experiment
- Population or scope
- Genetically diverse female mice
- Sample or coverage
- 960 randomized; 937 started the diets at 6 months of age
- Study duration or data period
- Followed across the animals’ lifespans
- Comparison
- Two calorie-restriction levels or one- or two-day weekly fasting versus unrestricted feeding.
Research terms in this source
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