Nicotinamide Riboside (NR)

Nicotinamide riboside (NR) is a form of vitamin B3 that has gained significant attention as a potential anti-aging supplement. Research indicates that NR can effectively raise NAD+ levels in human tissues, which naturally decline with age. Studies suggest this elevation may support cellular energy production, DNA repair mechanisms, and the activation of sirtuins - proteins associated with longevity and stress resistance.

Human clinical trials have demonstrated that NR supplementation is generally well-tolerated and can successfully increase NAD+ levels in various tissues, including skeletal muscle. However, the translation of elevated NAD+ levels to meaningful health benefits remains under investigation. Some studies have shown modest improvements in markers of muscle health and inflammation, while others have found limited functional improvements despite biochemical changes.

While NR appears safe for most healthy adults, the long-term effects and optimal dosing strategies are still being researched. The supplement has received GRAS (Generally Recognized as Safe) status from the FDA, making it widely available as a dietary supplement. Current research continues to explore its potential applications in aging, metabolic health, and neurological conditions.