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Anti-Aging

NAD+ Precursors

Also known as: NMN, NR, Nicotinamide Riboside, Nicotinamide Mononucleotide

Clinical Trials
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Key Facts: NAD+ Precursors

Category
Anti-Aging
FDA Status
Not FDA Approved
Clinical Status
Available as supplements - NMN reinstated as legal dietary supplement by FDA (Dec 2025, reversing 2022 exclusion). Multiple human clinical trials completed.
Administration
Oral (capsules, sublingual)
Typical Dose
Limited community data available
Frequency
See research protocols
Duration
Ongoing supplementation
Also Known As
NMN, NR, Nicotinamide Riboside, Nicotinamide Mononucleotide

Mechanism of Action

NMN and NR are converted to NAD+ in cells. NAD+ is essential for mitochondrial function, DNA repair, and sirtuin enzyme activity. Sirtuins regulate metabolism, stress response, and longevity pathways. NAD+ levels decline with age.

Research Summary

Animal studies show improved metabolic function, enhanced exercise capacity, and extended healthspan. Human trials demonstrate safety and NAD+ elevation. Long-term benefits in humans still being established. David Sinclair's research popularized the field.

Trial Progress:Preclinical
Pre
I
II
III
IV
FDA

Dosing Information

Human Trials·Human studies conducted, not FDA approved

Typical Dosingⓘ

Community experience

Common Dose

Limited community data available

Range

See research dosing

Frequency

See research protocols

Research Dosingⓘ

Scientific studies

Doses from research and supplements

Duration

Ongoing supplementation

Administration

Oral (capsules, sublingual)

Timing & Administration

Best Time to Take

Morning or before bed

Once daily, consistent timing

Food Recommendation

With or without food

Why This Timing?

Anti-aging peptides can be taken morning for daytime cellular support or evening for overnight repair.

Possible Side Effects

Not everyone experiences these effects. Individual responses vary based on dosage, duration, and personal factors.

  • ●Generally well-tolerated
  • ●Diarrhea (rare)
  • ●Nausea (rare)
  • ●Skin rashes (rare)
  • ●Does NOT cause flushing like niacin
  • ●Theoretical cancer concerns with chronic use
  • ●NR has GRAS status

References

Research This Peptide Further

PubMedClinicalTrials.govFDA.gov

Frequently Asked Questions

What does NAD+ Precursors do?

While not peptides, NAD+ precursors are frequently discussed alongside peptides in longevity circles. They boost cellular NAD+ levels, supporting energy metabolism and sirtuin activity.

How does NAD+ Precursors work?

NMN and NR are converted to NAD+ in cells. NAD+ is essential for mitochondrial function, DNA repair, and sirtuin enzyme activity. Sirtuins regulate metabolism, stress response, and longevity pathways. NAD+ levels decline with age.

Is NAD+ Precursors FDA approved?

No, NAD+ Precursors is not currently FDA approved. Current status: Available as supplements - NMN reinstated as legal dietary supplement by FDA (Dec 2025, reversing 2022 exclusion). Multiple human clinical trials completed.

What are the side effects of NAD+ Precursors?

Reported side effects include: Generally well-tolerated, Diarrhea (rare), Nausea (rare), Skin rashes (rare), Does NOT cause flushing like niacin. Individual responses vary based on dosage, duration, and personal health factors.

What is the typical dose of NAD+ Precursors?

Community-reported common dose: Limited community data available (See research protocols). Range: See research dosing. Administration: Oral (capsules, sublingual). Community-reported doses. Not medical advice. Consult healthcare provider.

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