NAD+ has become one of the most-discussed molecules in longevity conversation, which is both a good and a slightly awkward thing. Good, because the underlying biochemistry is real and well described. Awkward, because the confidence of the marketing has raced ahead of the confidence of the evidence.
This is a short, grounded read on what NAD+ actually does, why levels decline with age, and where a provider-guided protocol may — where clinically appropriate — have a place.
What NAD+ is doing while you read this
Nicotinamide adenine dinucleotide is a coenzyme every cell in the body relies on. It is central to how mitochondria produce ATP, to how the body responds to DNA damage, and to the activity of sirtuins — a family of proteins involved in cellular repair and metabolic regulation. In short, it is upstream of a great deal of quiet housekeeping.
Why levels drift down
Total NAD+ availability declines with age, chronic inflammation, disrupted sleep, and heavy metabolic stress. That decline is not the only reason biological systems slow, but it is a plausible contributor to the fatigue, recovery lag and dimmer subjective energy many adults notice from the late thirties onward.
"The interesting question is not whether NAD+ matters. It is whether raising it, in this person, at this life stage, meaningfully changes anything worth changing."
Where a protocol may fit
Where clinically appropriate, an Aurevia provider may consider a NAD+ injectable or precursor protocol as part of a broader plan — usually alongside attention to sleep, training load, iron status and thyroid function. It is rarely the first move, and it is not framed as a cure. It is one tool in a longer-horizon strategy.
- —Baseline conversation about sleep, training, stress and recovery.
- —Consideration of iron, thyroid and hormone status where indicated.
- —A titrated protocol only where clinically appropriate.
- —Subjective energy, recovery and sleep tracked alongside any labs.
- —Willingness to de-escalate if the response does not warrant continuation.
What to be honest about
The evidence base is evolving. Individual response varies. Cost and cadence matter. A responsible provider will name the uncertainty and design the plan to be reversible. Results may vary — and the honest version of the conversation includes what would count as the protocol not working.
Read that way, NAD+ becomes a quiet part of a larger plan rather than the plan itself. That is the register Aurevia prefers.