Meta Information

ID:calorie-restriction-diet

Name:Calorie Restriction Diet

Schema Version:1.5

Title

Calorie Restriction

Alternate Names

• CR
• Caloric Restriction

Intervention Type

dietary_practice

Expected Cost Mean

Low Cost:

-50

High Cost:

100

Cost Type:

monthly

Description:

Potential cost savings on food, possibly offset by nutrient-dense food choices.

Summary

Calorie restriction (CR) involves reducing average daily caloric intake below what is typical or habitual, without malnutrition. This metabolic stress activates key longevity pathways, such as AMPK and sirtuins, while inhibiting the mTOR pathway. This shifts cellular resources from growth and proliferation towards maintenance and repair, a state robustly shown to extend lifespan and healthspan in numerous species.

Purpose

Reduces metabolic stress to activate cellular repair and longevity pathways.

Card Summary

Reduces daily calorie intake to activate key longevity pathways like AMPK and sirtuins, promoting cellular maintenance and repair.

Drug Class

Drugs In Class

Empty Array

Impact

Score:

9.5

Justification:

The most robustly studied intervention for extending lifespan across multiple species.

Evidence

Grade:

A

Score:

9.8

Justification:

Extensive animal data and long-term human RCTs (e.g., CALERIE) show benefits.

Safety

Score:

3.5

Justification:

Risk of malnutrition, muscle/bone loss, and hormonal disruption if not properly implemented.

Flags

• Requires careful planning to avoid micronutrient deficiencies.
• May lead to loss of lean muscle mass and bone density if protein intake and resistance training are inadequate.
• Can be psychologically difficult to adhere to long-term.
• Not recommended for individuals who are underweight, frail, or have a history of eating disorders.
• Potential side effects include cold intolerance, reduced libido, and temporary decreases in energy.

Verdict

A foundational, highly effective intervention requiring careful, sustainable implementation.

Created

2026-04-23T22:58:03.973322Z

Model

Gemini 3.1 Pro (High)

Delivery

Route:

none

Scope:

• systemic

Indication

Focus:

healthspan

Description:

Calorie restriction (CR) involves reducing average daily caloric intake below what is typical or habitual, without malnutrition. This metabolic stress activates key longevity pathways, such as AMPK an...

Typical Protocol

• Sustained daily reduction of 15-25% of total calories while maintaining micronutrient sufficiency.