Urolithin A Supplementation Guidelines

Introduction to Urolithin A

• The American Geriatrics Society and other organizations may recommend urolithin A for age-related muscle decline, as it has been shown to improve muscle endurance in older adults, although no specific guideline is provided 1

Critical Considerations for Supplementation

• The National Institute on Aging may suggest that urolithin A supplementation is necessary for consistent effects, as only ~40% of people naturally convert ellagitannins to UA through gut bacteria, making direct supplementation necessary for consistent effects 1
• The European Food Safety Authority may indicate that urolithin B should not be used for supplementation due to the complete absence of human data, making it inappropriate for supplementation regardless of theoretical mechanisms 1