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Related Experiment Videos

Calorie restriction in primates: will it work and how will we know?

G S Roth1, D K Ingram, M A Lane

  • 1Gerontology Research Center, National Institute of Aging, National Institutes of Health, Baltimore, Maryland 21224-6823, USA.

Journal of the American Geriatrics Society
|July 15, 1999
PubMed
Summary

Dietary caloric restriction effectively slows aging in animals. This review explores its potential to extend human lifespan and healthspan, examining primate studies and future human interventions.

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Area of Science:

  • Gerontology and aging research
  • Metabolic and nutritional science
  • Comparative biology

Background:

  • Dietary caloric restriction (CR) is a proven method for extending lifespan and healthspan in various organisms.
  • Despite over 60 years of research, the precise mechanisms and human applicability of CR remain unclear.
  • Key unanswered questions involve the biological pathways of CR and its efficacy in humans.

Purpose of the Study:

  • To critically evaluate the potential of caloric restriction to extend human lifespan and healthspan.
  • To review the current evidence from primate models and other relevant studies.
  • To outline criteria and plans for future human caloric restriction interventions.

Main Methods:

  • Review of existing scientific literature on caloric restriction.

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  • Analysis of data from primate studies investigating the effects of CR.
  • Examination of evaluation criteria for human CR trials.

    • Main Results:

    • Caloric restriction is consistently linked to extended lifespan and improved healthspan in numerous animal models.
    • Primate studies provide valuable insights into the physiological effects of CR relevant to humans.
    • Existing data suggest potential benefits but highlight the need for rigorous human trials.

    Conclusions:

    • Caloric restriction shows significant promise for improving human aging outcomes.
    • Further research, particularly well-designed human intervention studies, is essential to confirm its benefits.
    • Understanding the mechanisms and optimizing human CR interventions are critical next steps.