Quercetin vs NAD+
Side-by-side comparison of Quercetin and NAD+: mechanism, half-life, dose range, safety profile, and vendor pricing.
Price snapshot
Quercetin
NAD+
Quercetin
Quercetin is a polyhydroxylated flavonoid compound (chemically 3,3',4',5,7-pentahydroxyflavone) that occurs widely in edible plants as both the free aglycone and a family of glycosides including rutin…
No vendor price on file.
Full Quercetin profileNAD+
NAD+ (nicotinamide adenine dinucleotide, oxidized form) is a pyridine dinucleotide coenzyme essential to energy metabolism, DNA repair via PARP enzymes, sirtuin-mediated gene regulation, and calcium signaling via CD38.…
Lowest listed price: $25.00 across 11 listings
Full NAD+ profileSide-by-side comparison
| Attribute | Quercetin | NAD+ |
|---|---|---|
| Category | Flavonoid | Longevity |
| Research Stage | Preclinical | Phase II |
| Mechanism of Action | Quercetin acts through an exceptionally broad array of molecular mechanisms that collectively produce its antioxidant, anti-inflammatory, antihistamine, antiviral, cardiovascular, and senolytic effects: direct radical scavenging, metal chelation, enzyme… | Redox Cofactor Function NAD+ serves as the primary electron acceptor in catabolic reactions (glycolysis, TCA cycle, fatty acid oxidation), cycling between its oxidized (NAD+) and reduced (NADH) forms. This fundamental energy metabolism role means every cell… |
| Half-Life | — | Varies by form: NR ~8 hours plasma; NMN ~1-2 hours plasma; IV NAD+ infusion dose-dependent |
| Typical Dose Range | — | Oral precursors: NR 300-2,000 mg/day, NMN 250-900 mg/day, NAM 500-1,500 mg/day; IV NAD+ 500-1,500 mg per session. |
| Dosing Frequency | — | Oral precursors once daily (higher doses split AM/midday); IV NAD+ weekly-to-monthly at clinics. |
| Administration | — | Oral (precursors), Intravenous, Intramuscular, Subcutaneous |
| Side Effects | Quercetin has a favorable safety profile at typical supplementation doses with few serious adverse events reported in clinical trials up to 1500 mg daily for 12 weeks and extended use at 500-1000 mg daily. Dietary intake through food is universally safe.… | Nicotinamide Riboside (NR) NR has the best-characterized safety profile of the NAD+ precursors. Across published RCTs at 1,000-2,000 mg/day for up to 12 weeks, adverse effects have been mild and uncommon: - Gastrointestinal upset (5-10% of users) - Mild… |
| Molecular Weight | — | 663.4 g/mol (NAD+); NR 255.3 g/mol; NMN 334.2 g/mol; NAM 122.1 g/mol |
| Common Vial Sizes | — | 100mg, 250mg, 500mg |
Price History
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Quercetin: potential benefits
- No structured benefit list published.
NAD+: potential benefits
- Restores age-associated NAD+ decline — 50% loss between young and older adulthood
- Increases peripheral blood NAD+ by up to 142% at 1,000 mg NR daily (Elhassan 2019)
- Supports sirtuin-mediated gene regulation and PARP-mediated DNA repair
- Improves muscle insulin sensitivity in prediabetic postmenopausal women (Yoshino 2021)
- Increases aerobic performance in amateur runners at 300-600 mg NMN (Liao 2021)
- Reduces inflammatory cytokines (IL-6, TNF-alpha) in middle-aged/elderly (Martens, Elhassan)
- Brain NAD+ elevation demonstrated in Parkinson trial (Brakedal 2022)
- Excellent safety profile at evidence-supported doses (500-2000 mg/day NR)
Frequently asked
What's the difference between Quercetin and NAD+?
Quercetin is a flavonoid that quercetin acts through an exceptionally broad array of molecular mechanisms that collectively produce its antioxidant, anti-inflammatory, antihistamine, antiviral, cardiovascular,…. NAD+ is a longevity that redox cofactor function nad+ serves as the primary electron acceptor in catabolic reactions (glycolysis, tca cycle, fatty acid oxidation), cycling between its oxidized (nad+) and…. The two differ in mechanism, half-life (not reported vs Varies by form: NR ~8 hours plasma; NMN ~1-2 hours plasma; IV NAD+ infusion dose-dependent), and typical dose range.
Which has the longer half-life, Quercetin or NAD+?
Quercetin has a half-life of not reported. NAD+ has a half-life of Varies by form: NR ~8 hours plasma; NMN ~1-2 hours plasma; IV NAD+ infusion dose-dependent. Longer half-lives generally mean less frequent dosing but slower on/off kinetics.
Can you stack Quercetin and NAD+?
Stacking depends on mechanism overlap, safety profile, and goals. Quercetin and NAD+ should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds.
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Research use only. BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. We earn an affiliate commission on some outbound clicks, and every vendor is ranked on the same public, reproducible methodology. See editorial standards and affiliate disclosure.