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Updated: Jun 3, 2026

Solid Plate-based Dietary Restriction in Caenorhabditis elegans

Solid Plate-based Dietary Restriction in Caenorhabditis elegans

Published on: May 28, 2011

Calorie restriction and aging in nonhuman primates.

Joseph W Kemnitz¹

¹Wisconsin National Primate Research Center, 1220 Capitol Court, Madison, WI 53715-1299, USA. kemnitz@primate.wisc.edu

|March 18, 2011

Summary

Calorie restriction (CR) in nonhuman primates extends lifespan and improves health by reducing disease and preserving function. This research offers insights into aging and disease prevention for humans.

Area of Science:

Gerontology
Nutritional Science
Primate Research

Background:

Calorie restriction (CR) has shown lifespan-extending benefits in short-lived animal models for 75 years.
CR involves reducing caloric intake while maintaining nutritional value.
Its effects on aging and longevity in long-lived species are of significant interest.

Purpose of the Study:

To review the design, methods, and findings of long-term studies on CR in nonhuman primates (NHPs).
To assess the impact of CR on physiological function, disease incidence, and lifespan in NHPs.
To explore the potential of CR as an intervention for human aging and disease.

Main Methods:

Analysis of two prospective investigations on CR in NHPs spanning nearly 25 years.

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Review of contributing studies examining CR's effects on health, aging rate, and longevity.

Evaluation of physiological, metabolic, and morphological endpoints in CR-fed NHPs.

Main Results:

Prolonged CR in rhesus monkeys appears to extend lifespan.
Observed benefits include lower body fat, reduced muscle loss, and decreased incidence of neoplasia, cardiovascular disease, and type 2 diabetes.
Improved insulin sensitivity, preserved brain morphology, and no adverse effects on bone health were noted.

Conclusions:

CR in NHPs demonstrates beneficial effects on physiological function and disease retardation, consistent with findings in other species.
Mechanisms underlying CR's benefits require further elucidation for human application.
CR research in NHPs holds potential for novel insights into aging and disease risk.