NAD+ 1,000mg

NAD+ 1,000mg is a critical coenzyme found in every cell, involved in energy production (via ATP), DNA repair, gene expression, and cellular signaling. Levels decline with age (by ~50% by middle age), contributing to fatigue, metabolic issues, and aging processes. Supplements aim to boost NAD+ levels, often for anti-aging, energy, cognitive support, or recovery.

Common Forms and Delivery

• Direct NAD+: IV infusions (500–2,000 mg per session) are popular in clinics for rapid uptake, bypassing poor oral bioavailability (NAD+ breaks down in the gut).
• Precursors (more common orally): NMN (nicotinamide mononucleotide) or NR (nicotinamide riboside) convert to NAD+. Direct oral NAD+ is less effective due to degradation.
• 1,000 mg dose: High but used in some protocols. Oral capsules/powders exist (e.g., from brands like Renue by Science or DoNotAge), often sublingual or liposomal for better absorption. Not FDA-approved as a drug; sold as a supplement.

Potential Benefits (Evidence-Based)

Risks & Side Effects at 1,000 mg

• Common (mild): Nausea, flushing, headache, diarrhea (especially oral; ~10–20% users). IV can cause chest tightness or rapid heartbeat.
• High-Dose Concerns: >500 mg may inhibit sirtuins paradoxically or cause methyl group depletion (use with TMG/betaine). Rare: liver enzyme elevation.
• Interactions: Avoid with chemotherapy, blood thinners, or SSRIs (theoretical). Not studied in pregnancy/kids.
• Safety Data: GRAS status for precursors; human trials up to 2,000 mg/day NR safe for 6–12 months (e.g., ChromaDex trials). No long-term data on direct NAD+ at 1g+.

Dosage Recommendations

• Standard: 300–500 mg/day (split doses) for maintenance.
• 1,000 mg: Aggressive; often cycled (e.g., 5 days on/2 off) or via IV (1–2x/week). Start low (250 mg) to assess tolerance.
• Stacking: Pair with resveratrol (sirtuin activator), TMG (methyl donor), or quercetin for synergy.

Evidence Summary

• Strongest Support: Precursors (NR/NMN) in 20+ RCTs; direct NAD+ mostly IV/animal data.
• Limitations: Oral bioavailability <10%; most benefits from boosting precursors, not direct NAD+.
• Cost: 200–500/session.

Not medical advice—consult a doctor, especially with conditions. Blood tests (e.g., NAD+ levels via Jinfiniti) can guide use. For protocols, see experts like Dr. David Sinclair’s work (Lifespan book) or trials on ClinicalTrials.gov. Sources: PubMed, Cell, Nature reviews (2020–2024).