NAD+ and Cellular Energy: The Longevity Connection

Understanding NAD+
Nicotinamide Adenine Dinucleotide (NAD+) is a coenzyme found in all living cells. It plays a critical role in energy metabolism, DNA repair, and cellular signaling.
Why NAD+ Declines with Age
NAD+ levels decrease by approximately 50% between ages 40 and 60 due to:
- Increased consumption by DNA repair enzymes
- Activation of CD38 (an NAD+-consuming enzyme)
- Reduced biosynthesis capacity
- Chronic inflammation
Key Functions of NAD+
Energy Production
NAD+ is essential for mitochondrial function:
- Facilitates ATP synthesis
- Supports cellular respiration
- Enhances metabolic efficiency
DNA Repair
Activates sirtuins and PARPs:
- Repairs damaged DNA
- Maintains genomic stability
- Reduces cellular senescence
Circadian Rhythm Regulation
Influences sleep-wake cycles:
- Regulates CLOCK genes
- Optimizes metabolic timing
- Improves sleep quality
Benefits of NAD+ Supplementation
Cognitive Enhancement
- Improved mental clarity and focus
- Enhanced memory formation
- Neuroprotection against age-related decline
- Better stress resilience
Physical Performance
- Increased endurance and stamina
- Faster recovery from exercise
- Enhanced muscle function
- Improved cardiovascular health
Metabolic Optimization
- Better insulin sensitivity
- Enhanced fat oxidation
- Improved glucose metabolism
- Increased metabolic rate
Administration Protocols
IV/Injection
Most effective delivery method:
- Dose: 500-1000mg per session
- Frequency: 1-2 times per week
- Onset: Immediate effects
- Duration: 3-7 days
Sublingual
Good bioavailability:
- Dose: 50-100mg daily
- Timing: Morning on empty stomach
- Absorption: 40-60%
Synergistic Combinations
NAD+ Boosting Stack
- NMN or NR: NAD+ precursors
- Resveratrol: Activates sirtuins
- Pterostilbene: Enhanced bioavailability
- Quercetin: CD38 inhibitor
Mitochondrial Support
- CoQ10: Electron transport chain
- PQQ: Mitochondrial biogenesis
- Alpha-lipoic acid: Antioxidant support
Expected Results
Timeline for noticeable benefits:
- 1-3 days: Increased energy, mental clarity
- 1-2 weeks: Improved sleep, mood enhancement
- 4-8 weeks: Physical performance gains
- 3-6 months: Anti-aging effects, metabolic improvements
Safety Considerations
- Generally well-tolerated
- Mild flushing possible (histamine response)
- Start with lower doses to assess tolerance
- Consult healthcare provider if on medications