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NAD+ Metabolism and Its Role in Longevity
Longevity Research

NAD+ Metabolism and Its Role in Longevity

Published on March 12, 2026
By Lifespan Team
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Understanding how NAD+ levels decline with age and how boosting NAD+ may promote healthy aging.

NAD+ Metabolism and Its Role in Longevity

Nicotinamide adenine dinucleotide (NAD+) is a crucial coenzyme involved in hundreds of metabolic processes. NAD+ levels decline with age, contributing to various age-related dysfunctions.

NAD+ Functions

  • Energy metabolism

  • DNA repair

  • Gene expression regulation

  • Cellular stress responses

    NAD+ Precursors

    Several compounds can boost NAD+ levels:

  • Nicotinamide Riboside (NR)

  • Nicotinamide Mononucleotide (NMN)

  • Nicotinamide

    Research Findings

    Studies show that restoring NAD+ levels may:

  • Improve mitochondrial function

  • Enhance DNA repair

  • Activate sirtuins (longevity proteins)

  • Improve metabolic health