NAD+ Therapy for Men: Anti-Aging Science or Expensive Placebo?
NAD+ (nicotinamide adenine dinucleotide) is having its moment in the longevity and biohacking world. It's a coenzyme present in every cell of your body, essential for energy production, DNA repair, and cellular signaling. And it declines roughly 50% between ages 40 and 60. The question men are asking: is supplementing it worth the money?
What NAD+ Actually Does
NAD+ is a central player in cellular metabolism. It shuttles electrons during the energy production process (oxidative phosphorylation), activates sirtuins (proteins involved in DNA repair and aging regulation), and serves as a substrate for PARP enzymes (which repair damaged DNA). When NAD+ levels are high, cells function more efficiently. When they decline, cellular processes slow down — contributing to the hallmarks of aging.
The Evidence: Where We Stand
Here's where intellectual honesty matters. The animal data is genuinely impressive — NAD+ precursors have extended lifespan and healthspan in mouse models, improved cardiovascular function, reversed age-related muscle decline, and enhanced cognitive performance. The problem: human clinical evidence is still limited and mixed.
What we know from human studies so far:
- NMN supplementation (a NAD+ precursor) improved insulin sensitivity and muscle function in older adults in a small Washington University study
- NR supplementation (another precursor) increased NAD+ blood levels reliably but showed modest clinical benefits in short-term trials
- IV NAD+ infusions show acute energy and clarity effects that many users report, but controlled studies are extremely limited
- No large-scale, long-term RCTs have confirmed the longevity benefits seen in animal models
Delivery Methods Compared
NAD+ Providers via Telehealth
Care Bare Rx
NAD+ therapy program
GobyMeds
Sema $99/mo, Tirz $133/mo, NAD+ & Sermorelin. Code x7X72r saves $25
GobyMeds offers NAD+ therapy alongside sermorelin and GLP-1 medications, making it a convenient option for men building a comprehensive health optimization stack. Code x7X72r saves $25 on your first order.
Peter MD
NAD+ longevity program
Who Should Consider NAD+ Therapy?
NAD+ supplementation makes the most sense for men over 40 who:
- Have optimized the basics (sleep, exercise, nutrition) and want to explore additional longevity interventions
- Experience persistent fatigue despite normal hormone levels and adequate sleep
- Are interested in preventive health optimization and comfortable with the experimental nature of the evidence
- Can afford the ongoing cost without financial strain (this is a "nice to have," not a necessity)
NAD+ should not be your first investment if you haven't addressed sleep quality, exercise habits, diet, and hormone levels. Those fundamentals deliver far more bang for the buck than any supplement or infusion.