NAD+ and Longevity: What the Science Says
Interest in NAD+ has grown quickly, and patients in North Carolina, South Carolina, Georgia, and Florida regularly ask us what the science actually supports — and what's still unproven. Here's a conservative, evidence-grounded look.
What NAD+ Is and Why Cells Need It
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell in your body. It plays a central role in two processes essential to how your cells function day to day: converting food into usable cellular energy (ATP production) and supporting DNA repair signaling. Without adequate NAD+, these processes become less efficient.
Research indicates that NAD+ levels decline naturally with age — some studies suggest levels can fall by roughly 50% by age 40 and continue declining further by age 60. That age-related decline is the basis for interest in NAD+ supplementation as part of a broader longevity and cellular-health strategy.
What the Research Does — and Doesn't — Support
It's worth being precise here, because NAD+ is often marketed with claims that outpace the evidence.
What's reasonably well established: NAD+'s biological role in ATP production and DNA repair is well documented in cellular biology. Age-related decline in NAD+ levels is also well documented.
What's still being studied: Whether externally administered NAD+ meaningfully restores youthful cellular function, measurably extends healthspan, or reverses markers of aging in humans is an active, unresolved area of research. Much of the more dramatic anti-aging messaging around NAD+ comes from preliminary or animal studies, not large-scale human trials. We won't claim NAD+ therapy reverses aging or guarantees specific outcomes — the honest answer is that the long-term human data is still developing.
What we can say is that many patients pursuing NAD+ report subjective improvements in energy and recovery capacity, which aligns with NAD+'s known role in cellular energy metabolism — but individual results vary, and this isn't a substitute for the fundamentals of sleep, nutrition, and movement.
How NAD+ Programs Are Typically Administered
NAD+ is available through a few delivery formats, most commonly injection or oral dropper, with your provider determining which format and dosing schedule fits your goals. NAD+ is frequently paired with Sermorelin — a peptide that supports the body's natural growth hormone signaling — in a combined protocol aimed at cellular energy, sleep quality, and recovery support. Sermorelin is one of several options available through our broader peptide therapy programs, for patients whose goals extend beyond NAD+ alone.
What a Typical Program Includes
- An initial clinical review with a licensed provider to confirm eligibility
- A dosing protocol tailored to your goals (standalone NAD+ or combined with Sermorelin)
- Ongoing provider supervision to adjust the protocol over time
Every patient is individually reviewed before any protocol is prescribed — this isn't a one-size-fits-all supplement, it's a physician-supervised program.
NAD+ and Sermorelin referenced on this page are compounded preparations produced at FDA-registered 503A and 503B compounding pharmacies and are not FDA-approved finished drug products. All patients are individually reviewed by a licensed independent clinician before any prescription is issued. Individual results vary significantly. This post does not constitute medical advice.
Interested in whether an NAD+ protocol fits your goals? Explore the Bold You Wellness longevity programs to learn more.