Dietary restriction longevity describes lifespan and healthspan benefits resulting from controlled limitation of nutrients while maintaining adequate nutrition. This approach improves metabolic balance, reduces cellular stress, and enhances maintenance pathways. Dietary restriction influences mitochondrial function, inflammation, and proteostasis, all of which are central to aging regulation. Unlike severe caloric restriction, dietary restriction strategies can be flexible and sustainable. Evidence across species shows delayed disease onset and preserved physiological function. Dietary restriction longevity highlights nutrition as a powerful modulator of aging biology and long-term health.
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