Caloric restriction, longevity and aging: Recent contributions from human and non-human primate studies

Area of Science:

• Gerontology
• Nutritional Science
• Longevity Research

Background:

• Chronic caloric restriction (CR) is linked to lifespan extension across species.
• Evidence suggests CR benefits in non-human primates, but human data remains limited.
• CR is a potential anti-aging strategy, necessitating clear definitions and understanding of its limits.

Purpose of the Study:

• To review and compare recent CR studies in non-human primates and humans.
• To explore the concept of optimal caloric intake for health and longevity.
• To discuss the feasibility of CR as an anti-aging intervention, considering potential risks.

Main Methods:

• Literature review of recent studies on caloric restriction.
• Comparative analysis of CR effects in non-human primates and human populations.
• Discussion of existing evidence and theoretical considerations regarding CR and aging.

Main Results:

• CR's lifespan-extending effects are well-documented in various species.
• Recent primate studies show promising results, but long-term human evidence is pending.
• Optimal caloric intake for anti-aging purposes remains to be precisely defined.

Conclusions:

• While CR shows potential as an anti-aging strategy, its long-term efficacy and safety in humans require further investigation.
• Defining optimal CR parameters is crucial before widespread application.
• Potential risks such as frailty and obesity must be weighed against benefits.