NAD+ (nicotinamide adenine dinucleotide) has become one of the most talked-about molecules in longevity medicine. Researchers, clinicians, and biohackers are paying serious attention — and for good reason. Here's what the science actually supports.
NAD+ is a coenzyme found in every cell of your body. It plays a central role in energy metabolism — specifically in converting nutrients into ATP, your cells' primary fuel source. But its role goes far beyond energy production.
NAD+ is a critical cofactor for two classes of enzymes that govern cellular health:
The problem: NAD+ levels decline by approximately 50% between ages 40 and 60. As levels fall, sirtuin activity drops, DNA repair slows, mitochondrial function declines, and cellular energy production becomes less efficient — hallmarks of biological aging.
The core hypothesis: Restoring NAD+ to youthful levels may support the biological processes that slow with age — energy production, DNA repair, and inflammation regulation.
Human clinical data on NAD+ supplementation is still emerging, but several key findings stand out:
NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors that the body converts into NAD+. A 2022 randomized controlled trial published in Nature Aging found that NMN supplementation significantly raised blood NAD+ levels in older adults and improved muscle insulin sensitivity. Separate studies have shown NR to be well-tolerated with measurable NAD+ increases at doses of 1,000–2,000mg daily.
Intravenous NAD+ bypasses gut absorption and delivers the molecule directly into the bloodstream, producing more rapid and pronounced effects. Clinicians report improvements in energy, mental clarity, and recovery — particularly in patients with metabolic dysfunction or post-viral fatigue. Formal RCT data is still limited, but preliminary findings are promising.
ASRX protocols often pair NAD+ support with complementary peptides. For example, BPC-157 supports mitochondrial repair at the cellular level, while Sermorelin increases growth hormone output — both of which synergize with improved NAD+ availability to support overall cellular energy and recovery.
NAD+ therapy is generally best suited for:
Through ASRX, NAD+ is available as part of our longevity and anti-aging protocol track. A board-certified provider will review your health history and goals before recommending a protocol — which may include NAD+ precursors, injectable options, or a stacked peptide approach.
Take the 5-step assessment and get matched with a provider-reviewed NAD+ and longevity protocol.
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