The Science Behind NAD+ Boosters

NAD+ (nicotinamide adenine dinucleotide) is arguably the most important molecule in longevity science right now. It's essential for over 500 enzymatic reactions in your body, including DNA repair, energy metabolism, and circadian rhythm regulation.

As we age, NAD+ levels decline by roughly 50% every 20 years. This decline is linked to virtually every hallmark of aging: mitochondrial dysfunction, genomic instability, cellular senescence, and chronic inflammation.

There are two main precursors used to boost NAD+: NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside). Both are converted into NAD+ through different metabolic pathways. NMN is one step closer to NAD+ in the biosynthesis pathway, which some researchers argue makes it more efficient.

The sirtuin connection is key: NAD+ activates a family of proteins called sirtuins (SIRT1-7), which regulate gene expression, DNA repair, and metabolic pathways. Dr. David Sinclair's research has shown that boosting NAD+ can reactivate sirtuins and potentially reverse aspects of aging at the cellular level.

Clinical evidence is growing. Human trials have shown that NMN supplementation is safe and can increase blood NAD+ levels. A 2022 study showed improved aerobic capacity in middle-aged runners taking NMN. However, long-term human studies on lifespan extension are still underway.

When choosing a NAD+ booster, look for: third-party testing for purity (>98%), proper storage (some forms are heat-sensitive), and realistic dosing based on published research (typically 250-1000mg daily for NMN).

Explore Related Products

Find the best science products reviewed by our community