Daily cellular protocol
NAD+
500mg of NAD+ supported by Quercetin and Resveratrol, dosed once daily for cellular energy and metabolic health.
View NAD+Where it fits for men
NAD+ for Men: Where It Fits and Where It Doesn't
Most NAD+ marketing is aimed at a general longevity audience. Here is the version written for a man deciding where his supplement budget goes.
This guide is part of our NAD+ supplement guides track. For continuity, read Muscle Velocity's NAD+ for men and NAD+ for hair loss.
The short answer
The NAD+ trials that exist enrolled both sexes and were not designed to detect male-specific effects — the 2024 performance review's pooled population was 48.5% male. So there is no evidence base for NAD+ as a specifically male intervention, and nothing supporting a direct testosterone effect. What it offers a man is the same thing it offers anyone: a documented way to restore a coenzyme that declines with age, with honest uncertainty about what that changes. It sits well below sleep, training, and hormonal fundamentals in priority.
Decision brief
What matters before you buy
No randomized trial has tested NAD+ as a male-specific intervention or reported it as a subgroup.
There is no human evidence that NAD+ supplementation raises testosterone.
Trials enrolled mixed populations — the 2024 performance review pooled 48.5% male participants.
Sleep, training, body composition, and medical workup outrank this for male vitality.
Muscle Velocity standard
A foundational input, positioned honestly
500mg of NAD+ with Quercetin and Resveratrol for cellular energy support. No hormonal claims, because the trials do not support any.
Educational content only. Supplements are not a substitute for medical care. Speak with a qualified healthcare professional when a condition, medication, or persistent symptom is involved.
What the trials actually enrolled
The randomized evidence in this field was not built to answer questions about men specifically. Martens and colleagues recruited thirty adults aged 55–79 of both sexes. The 2024 systematic review of physical-performance trials pooled 437 participants at 48.5% male and 51.5% female.
Those studies were designed to test whether a compound raises NAD+ and shifts general outcome measures, not to detect differences between men and women. Absence of a male-specific finding is therefore absence of a male-specific question, not evidence of no effect.
The practical consequence is that anyone marketing an NAD+ product as engineered for male physiology is going beyond what has been studied. The molecule does not know your sex; the trials did not ask.
The testosterone question, answered directly
There is no human trial evidence that NAD+ or its precursors raise testosterone. If you have arrived here from a product implying otherwise, that implication is not supported.
What the NAD+ literature does support is narrower. Martens and colleagues raised NAD+ in immune cells roughly 60% at 1000mg/day of nicotinamide riboside. Outcome measures across the field have been softer: a 2024 meta-analysis of eight NMN trials found no significant change in metabolic markers, and a performance review described strength and aerobic gains as nonsignificant.
For a man whose actual concern is hormonal, the sequence is bloodwork and a clinician, then the lifestyle levers with real evidence — sleep, resistance training, body composition, alcohol, stress load. NAD+ is not the lever that addresses that problem.
- Not demonstrated: any effect of NAD+ supplementation on testosterone
- Not studied: NAD+ as a male-specific intervention with subgroup reporting
- Established: NAD+ declines with age and precursors restore circulating levels
- Higher priority for male vitality: sleep, training, body composition, medical workup
Where it reasonably fits
Treat NAD+ as a foundational metabolic input you add after the higher-yield work is already in place, not as a shortcut around it. A man sleeping five hours and training inconsistently will get nothing out of this that he could not get more of elsewhere.
If the fundamentals are handled and you want to support cellular energy metabolism with something that has randomized evidence for its mechanism and honest uncertainty about its outcomes, this is a defensible place for a modest monthly spend.
Run it properly: a consistent dose inside the studied range, taken daily, judged at eight to twelve weeks against one outcome you defined in advance. Persistent fatigue or low libido deserves bloodwork, not a longer supplement trial.
Buying checklist
How to choose without getting sold
No testosterone implication
There is no human evidence for it. A product hinting at a hormonal effect is telling you it is not evidence-led.
A stated dose you can hold steady
Published trials ran 150–2000mg/day. Consistency over eight to twelve weeks is what makes a result readable.
Third-party verification
Label inaccuracy is documented across this category regardless of who the product is marketed to.
Honest positioning in the stack
Anything sold as more important than sleep and training for male vitality has its priorities inverted.
Fit check
Who this path is—and is not—for
Good fit
- Men over 40 who have already addressed sleep, training, and nutrition
- Readers who want the testosterone question answered directly rather than implied
- Anyone deciding where NAD+ belongs in an existing supplement stack
Poor fit
- Men looking for a testosterone effect — there is no human evidence for one
- Anyone with unexplained fatigue or low libido who has not had bloodwork
- People hoping a supplement compensates for chronic sleep debt
Common questions
The questions worth answering
Does NAD+ increase testosterone?
There is no human trial evidence that NAD+ or its precursors raise testosterone. If a product implies a hormonal benefit, that implication is not supported by the randomized literature in this field.
Is there a best NAD+ supplement for men specifically?
No trial has tested NAD+ as a male-specific intervention or reported men as a separate subgroup. Products marketed as formulated for men are using positioning, not evidence. Judge them on stated dose, verified content, and price per gram like any other.
Will NAD+ help with energy and recovery for training?
The evidence is mixed. A 2024 review of ten NMN trials found improvements in gait speed and walking distance but described strength and aerobic effects as nonsignificant, with no change in muscle mass or body composition. Expect a foundational input, not a performance supplement.
Where should NAD+ sit in my stack?
Below the fundamentals. Sleep, resistance training, body composition, alcohol intake, and stress load all have stronger evidence for male vitality than anything in this category. Add NAD+ once those are handled, not instead of handling them.
Evidence desk
Read the sources, not just the summary
Martens et al., Nature Communications (2018) — chronic NR supplementation in middle-aged and older adultsRandomized, double-blind, placebo-controlled crossover trial. 1000mg/day nicotinamide riboside raised NAD+ in peripheral blood mononuclear cells by roughly 60% versus placebo.Systematic review of NMN randomized controlled trials and physical performance (2024)Ten randomized controlled trials, 437 participants, 150–1200mg/day across 4–12 weeks. Reports where performance measures moved and where they did not.Current Diabetes Reports (2024) — NMN and glucose and lipid metabolism meta-analysisEight randomized controlled trials, 342 adults, 250–2000mg/day. Blood NAD+ rose in five trials while glucose, insulin, HbA1c, lipids, BMI, and blood pressure did not shift.
Continue the NAD+ guide
By goal
What the trials support for a specific outcome — and what they do not.
Metabolism, measurednad for weight lossSkin, without the before-and-afternad for skinLongevity, carefullynad supplement for aging
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