Many resources are available for practicing CR. We have a guide below, as well as several book recommendations.
Online CR Guide
Tests and Biomarkers
CR or Anorexia
The CR Way by CR Society Board of Directors members Paul McGlothin and Meredith Averill
The Longevity Diet by CR Society President Brian M. Delaney and Emeritus Board member Lisa Walford
Beyond the 120 Year Diet : How to Double Your Vital Years by Dr. Roy Walford
The Anti-Aging Plan: Strategies and Recipes for Extending Your Healthy Years by Dr. Roy Walford and Lisa Walford