Nucleotide & Cofactor · Vitamin

NAD+ (Nicotinamide Adenine Dinucleotide)

Provisional Strong Scorenucleotide

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Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

NAD+ (nicotinamide adenine dinucleotide) is a crucial coenzyme that facilitates cellular energy production through mitochondrial ATP synthesis. It activates sirtuin proteins and supports DNA repair mechanisms essential for cellular longevity and metabolic function.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryNucleotide & Cofactor

GroupVitamin

Public Score StatusProvisional Strong

Primary KeywordNAD+ benefits

NAD+ close-up macro showing natural texture and detail — rich in coenzyme, redox modulator, mitochondrial support

NAD+ (Nicotinamide Adenine Dinucleotide) — botanical close-up

Reported Benefits (Provisional)

Supports cellular energy production by boosting mitochondrial function, vital for overall vitality. - Enhances cognitive function by increasing brain NAD+ levels, which may improve memory and focus. - Promotes healthy aging by activating sirtuins, proteins that repair DNA and extend cell life. - May improve metabolic health by enhancing insulin sensitivity, potentially reducing diabetes risk by 30%. - Supports cardiovascular health by maintaining healthy cholesterol levels, reducing heart disease risk. - Boosts immune function by enhancing the activity of immune cells, providing better defense against pathogens. - Aids in muscle recovery by enhancing energy availability, reducing fatigue after exercise.

Origin & History

Natural habitat

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in all living cells, playing a crucial role in energy metabolism. It is synthesized in the body from niacin and other precursors and is available in supplement form.

“Discovered in the early 20th century, NAD+ has been extensively studied for its role in cellular metabolism and aging.”Traditional Medicine

Research Narrative (Provisional)

Research includes numerous studies on its role in aging and metabolism, with several human trials showing potential benefits for metabolic and cognitive health.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Not a traditional nutrient, but a coenzyme vital for metabolic processes. - Involved in redox reactions and energy production. - Available in supplement form as precursors like nicotinamide riboside.

Reported Mechanism (Provisional)

Mechanism of Action

NAD+ functions as an electron carrier in cellular respiration, facilitating ATP production through the electron transport chain in mitochondria. It serves as a substrate for sirtuin deacetylases (SIRT1-7), which regulate gene expression and DNA repair. NAD+ also activates poly(ADP-ribose) polymerases (PARPs) involved in DNA damage response and cellular stress management.

Clinical Narrative (Provisional)

Human studies on NAD+ precursors like nicotinamide riboside show modest increases in blood NAD+ levels (20-50% increases with 250-1000mg daily). A 12-week randomized trial with 140 participants found improved muscle mitochondrial function and insulin sensitivity. However, direct evidence for anti-aging effects remains limited to animal studies. Most human research focuses on precursors rather than direct NAD+ supplementation due to bioavailability challenges.

Also Known As

Nicotinamide adenine dinucleotideNADCoenzyme IDPNDiphosphopyridine nucleotideβ-Nicotinamide adenine dinucleotideNadide

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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