What Is NAD+ and Why Do Women Over 30 Need It?

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in every living cell in your body. It plays a central role in cellular energy production, DNA repair, and cellular signaling. Research consistently shows that NAD+ levels decline with age, and emerging evidence suggests this decline begins meaningfully in the 30s. A review published via PubMed Central confirmed that advancing age is associated with declines in NAD+ levels, and that NAD+ precursor compounds like nicotinamide riboside (NR) have been increasingly studied as a strategy for supporting physiological function with aging. For women navigating the energy, cognitive, and recovery changes that often begin in the 30s and accelerate through perimenopause, understanding NAD+ is part of understanding what their cells are actually doing.

What NAD+ does at the cellular level

NAD+ is not a single nutrient with a single function. It is a molecule that participates in hundreds of enzymatic reactions across the cell. Its primary roles:

• Cellular energy production. NAD+ is a critical component of the electron transport chain in the mitochondria, the cellular machinery responsible for generating ATP. Without adequate NAD+, the mitochondria cannot produce energy efficiently.†
• DNA repair. NAD+ is a substrate for PARP enzymes (poly-ADP-ribose polymerases), which detect and repair DNA strand breaks. This repair function accumulates in importance as cells age and DNA damage becomes more frequent.†
• Sirtuin activation. Sirtuins are a class of enzymes that regulate cellular stress responses, inflammation, and longevity pathways. They require NAD+ to function. When NAD+ declines, sirtuin activity declines with it.†
• Circadian rhythm regulation. NAD+ participates in the regulation of circadian clock genes. Disrupted NAD+ metabolism has been linked to circadian rhythm dysregulation, which in turn affects sleep quality, energy patterns, and metabolic health.†

Why NAD+ declines with age

NAD+ is both synthesized and consumed continuously in the cell. With aging, two things happen simultaneously: synthesis slows down and consumption accelerates. NAMPT, the enzyme that drives the primary NAD+ recycling pathway, decreases in activity with age. At the same time, PARP enzymes and CD38 (a NAD+-consuming enzyme whose activity increases with age and inflammation) draw down NAD+ reserves faster.

The result is a widening gap between supply and demand. A placebo-controlled, randomized crossover clinical trial published via PubMed Central demonstrated that supplementation with the NAD+ precursor nicotinamide riboside (NR) was well-tolerated and effectively elevated NAD+ metabolite concentrations in healthy middle-aged and older adults. The same trial provided preliminary evidence for potential cardiovascular and physiological function benefits worth investigating in larger trials.

A separate trial published via PubMed Central confirmed that oral NR supplementation augmented the skeletal muscle NAD+ metabolome in aged participants, with transcriptomic changes suggestive of downregulated inflammation and improved cellular health markers. This was the first human evidence that oral NR can meaningfully reach and affect skeletal muscle, not just blood markers.

"Women are armed with a ton of information. They just may not know how does this apply to me?"

— Jessica Nazzaro, DO, FACOG, NCMP, Board-Certified OB-GYN and National Certified Menopause Practitioner

Why this matters specifically for women over 30

For most women, the 30s and 40s are when the energy equation begins to shift in a way that feels different from ordinary tiredness. Recovery from physical activity takes longer. Cognitive sharpness in the afternoon is less reliable. Sleep is less restorative even when hours are adequate. These changes have multiple contributors, but the downstream effect of declining NAD+ on mitochondrial efficiency is one mechanism that is real, measurable, and addressable.

The perimenopause transition, which can begin in the late 30s for some women, compounds this. Estrogen plays a role in mitochondrial function, and fluctuating estrogen during this transition adds an additional layer of cellular energy disruption on top of the age-related NAD+ decline. Women navigating both simultaneously are operating a cellular energy system that is under pressure from two directions.

"We're starting to push the conversation with perimenopause and menopause and we don't have enough understanding of what's actually happening."

— Dr. Tosin Odunsi, MD, MPH, FACOG, Obstetrics and Gynecology Physician

NAD+ vs. NMN: which precursor is better?

NAD+ itself is too large a molecule to be absorbed intact from oral supplementation; it must be supplied as a precursor that the body converts into NAD+. The two most commonly supplemented precursors are nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN). Both are converted into NAD+ through the salvage pathway.

NR has a larger body of published human clinical trials supporting its safety and efficacy for raising NAD+ levels. NMN is a more recently commercialized precursor with growing but smaller human trial data. Both compounds are being actively researched. Neither is definitively superior based on current evidence, though NR's longer human clinical track record is a relevant consideration when choosing a supplement.

Pink Stork's NAD+, a cellular energy supplement formulated for women, delivers 500 mg of clinically studied nicotinamide riboside (NR) per capsule.† It is formulated without resveratrol, a choice made specifically to support optimal NR bioavailability, as resveratrol can interfere with NR metabolism. It is vegan, non-GMO, gluten-free, third-party tested in cGMP-certified laboratories, and made in the USA.

"Even where you store your supplements matters. How it arrived. What time of year. Little things that have a real impact."

— Amy Suzanne Upchurch, Founder and CEO of Pink Stork

What NAD+ supports as part of a women's supplement routine

Pink Stork NAD+ is designed to support:†

• Healthy NAD+ levels in the body†
• Cellular energy production†
• Cognitive function and mental clarity†
• Healthy metabolism†
• Skin health as part of healthy aging†
• Overall cellular repair and healthy aging†

For women who also want to address the downstream cellular energy system alongside NAD+, our micronized creatine with just one ingredient supports the phosphocreatine-ATP energy system that operates in parallel with NAD+-dependent mitochondrial production.† For women navigating stress alongside cellular energy concerns, our cortisol support supplement with organic ashwagandha addresses the HPA axis stress load that compounds cellular energy depletion.†

Always consult your healthcare provider before starting any new supplement. If you are pregnant or breastfeeding, there is not yet enough research to confirm NAD+ supplementation safety in those populations; discuss with your provider before beginning.

Frequently asked questions

What does NAD+ do in simple terms?

NAD+ is a molecule every cell uses to make energy, repair DNA, and regulate aging-related pathways. Think of it as a helper that powers your cellular machinery. When NAD+ levels decline with age, the machinery runs less efficiently, which shows up as reduced energy, slower recovery, and less cellular resilience.

When does NAD+ start to decline?

Research suggests NAD+ levels begin declining meaningfully with age, with some evidence pointing to measurable decline beginning in the 30s. The rate of decline varies between individuals and is influenced by factors including diet, exercise, stress load, and metabolic health.

Is nicotinamide riboside (NR) safe?

Multiple published human clinical trials have established NR as well-tolerated at doses up to 2,000 mg per day. The most commonly studied dose in clinical trials is 1,000 mg per day or less. Pink Stork NAD+ delivers 500 mg per capsule. Pregnant and breastfeeding women should consult their healthcare provider before supplementing, as this population has not been studied.

What is the difference between NAD+ and NMN?

Both NR and NMN are precursor molecules the body converts into NAD+. NR has a longer and larger body of published human clinical trial data supporting its safety and efficacy for raising NAD+ metabolites. NMN is a newer supplement category with growing but smaller human trial data. Neither is definitively superior based on current evidence; NR's clinical track record is the most established.

Does NAD+ help with perimenopause?

NAD+ supports cellular energy production and cellular repair, systems that are under additional stress during perimenopause due to estrogen fluctuation and its effects on mitochondrial function.† Research directly in perimenopausal women is limited, but the biological rationale for NAD+ support during this transition is grounded in how cellular energy systems interact with hormonal change. Discuss with your healthcare provider.

Can I take NAD+ with creatine?

Yes. NAD+ and creatine support cellular energy through different but complementary pathways. NAD+ supports the mitochondrial energy production system and DNA repair. Creatine supports the phosphocreatine-ATP fast energy system in muscle and brain. They are not redundant and can be taken together as part of a cellular energy stack.†

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition. Keep out of reach of children.