The Anti-Aging Power of NAD
- Research Team
- Oct 15, 2024
- 5 min read
Updated: Jan 13
Aging is a natural part of life, but what if we could slow it down? In recent years, scientists have begun to unravel the molecular mechanisms behind aging, and one molecule stands out as a key player: Nicotinamide Adenine Dinucleotide (NAD). This critical compound is involved in some of the most essential processes within our cells. Its levels decline as we age, contributing to the aging process itself. Understanding NAD and its role in cellular health is helping to pave the way for new approaches to longevity and healthy aging.
What is NAD?
NAD is a coenzyme found in all living cells, playing a crucial role in energy metabolism and the repair of damaged DNA. Think of NAD as a "helper molecule" that allows enzymes to carry out their work. Its most well-known function is facilitating the conversion of nutrients from food into cellular energy. In this process, NAD accepts and donates electrons, allowing cells to produce ATP, the body's primary energy currency. Without NAD, our cells would not be able to generate the energy they need to survive and function properly.
However, NAD does more than just produce energy. It is essential for activating proteins that regulate cellular health, including sirtuins and PARPs (Poly ADP-Ribose Polymerases). Both of these proteins play key roles in maintaining DNA integrity, repairing damaged cells, and regulating the aging process.
The Decline of NAD with Age
Unfortunately, NAD levels drop dramatically as we age. Research shows that by middle age, NAD levels are often less than half of what they were in youth. This decline in NAD is believed to contribute to the physical and cognitive symptoms of aging, such as fatigue, muscle weakness, and reduced cellular repair.
The depletion of NAD affects several critical cellular functions:
Energy Production: Cells become less efficient at producing energy as NAD levels decline, leading to increased fatigue and reduced physical endurance.
DNA Repair: With lower NAD levels, DNA repair mechanisms become less efficient, allowing DNA damage to accumulate. This accumulation is linked to aging and the development of chronic diseases.
Sirtuin Activation: Sirtuins are proteins that regulate many aspects of cellular health, including inflammation, stress response, and fat metabolism. NAD is required to activate sirtuins, and without sufficient levels, these processes break down, accelerating aging.
NAD and Longevity
Numerous studies have linked higher NAD levels to longer, healthier lives. In animal models, boosting NAD levels has been shown to improve lifespan and enhance healthspan—the number of years lived in good health. For example, a 2016 study found that increasing NAD levels in mice improved muscle function, enhanced mitochondrial performance, and delayed signs of aging.
Another study demonstrated that NAD supplementation helped repair DNA damage caused by radiation and environmental stressors. This repair process is critical for longevity, as accumulated DNA damage is a known driver of aging and age-related diseases like cancer, Alzheimer's disease, and cardiovascular disease.
Emerging evidence in humans suggests that boosting NAD levels may also offer anti-aging benefits. Early studies on NAD precursors like nicotinamide riboside (NR), nicotinamide mononucleotide (NMN), and niacin show promising results, improving markers of metabolic health, reducing inflammation, and supporting healthy aging.
How to Boost NAD Levels
Given the importance of NAD in cellular health and longevity, finding ways to maintain or increase NAD levels is essential for promoting healthy aging. Here are several proven methods:
1. NAD Precursors: Nicotinamide Riboside (NR), Nicotinamide Mononucleotide (NMN), and Niacin
Nicotinamide Riboside (NR): A form of vitamin B3, NR is a direct precursor to NAD. Clinical trials have shown that NR supplementation can effectively boost NAD levels in humans and improve health markers like insulin sensitivity and muscle function.
Nicotinamide Mononucleotide (NMN): Another potent NAD precursor, NMN has demonstrated similar benefits in animal studies, improving age-related physiological decline.
Niacin (Vitamin B3): A more common form of vitamin B3, niacin is also a precursor to NAD, playing a vital role in its synthesis.
2. Intermittent Fasting
Intermittent fasting has been shown to naturally increase NAD levels. This practice may enhance NAD recycling within cells. Fasting also triggers the activation of sirtuins, which rely on NAD.
3. Exercise
Regular exercise, particularly endurance exercise, is linked to increased NAD levels, especially in muscle tissue. Exercise stimulates mitochondrial activity, which promotes NAD production and supports overall metabolic health.
4. Limit Alcohol Consumption
Excessive alcohol consumption depletes NAD levels because the liver uses NAD to metabolize alcohol. Limiting alcohol intake can help preserve NAD stores.
5. Resveratrol Supplementation
Resveratrol, a compound found in the skin of grapes and berries, activates sirtuins and enhances NAD utilization. While resveratrol doesn’t directly increase NAD levels, it supports the sirtuin pathway, which requires NAD for cellular health.
Conclusion: Harnessing the Power of NAD for Healthy Aging
NAD is critical for cellular health, regulating energy production, and repairing DNA. As we age, NAD levels decline, contributing to the aging process and increasing the risk of chronic diseases. Fortunately, there are ways to boost NAD levels, from supplementation with NR, NMN, and niacin to lifestyle interventions like exercise and fasting.
By supporting NAD levels, we may be able to slow aging, enhance health, and promote longevity. While NAD isn’t a magic bullet, it is one of the most promising tools in the quest for a longer, healthier life.
If you're interested in boosting your NAD levels through natural supplementation, Celly Health has released an NAD boosting formula featuring NR and highly absorbable niacin to increase the NAD levels in your cells. Celly's products are made in the USA and third-party validated for purity and safety. You can learn more about Celly NAD Booster and their lineup of cellular health supplements by visiting the Celly Amazon store.
References:
Cantó, C., et al. (2015). NAD+ metabolism and the control of energy homeostasis: a balancing act between mitochondria and the nucleus. Cell Metabolism, 22(1), 31-53.
Imai, S. I., & Guarente, L. (2014). NAD+ and sirtuins in aging and disease. Trends in Cell Biology, 24(8), 464-471. [invalid URL removed]00064-8) 3. Rajman, L., Chwalek, K., & Sinclair, D. A. (2018). Therapeutic potential of NAD-boosting molecules: the in vivo evidence. Cell metabolism, 27(3), 529-547.
Zhu, X. H., Lu, M., Lee, B. Y., & Ugurbil, K. (2015). In vivo NAD assay reveals the intracellular NAD contents and redox state in healthy human brain and their age dependences. Proceedings of the National Academy of Sciences. https://www.pnas.org/doi/full/10.1073/pnas.1417921112
Verdin, E. (2015). NAD+ in aging, metabolism, and neurodegeneration. Science, 350(6265), 1208-1213. https://www.science.org/doi/10.1126/science.aac4854
Mills, K. F., Yoshida, S., Stein, L. R., Grozio, A., Kubota, S., Sasaki, Y., ... & Imai, S. I. (2016). Long-term administration of nicotinamide mononucleotide mitigates age-associated physiological decline in mice. Cell metabolism, 24(6), 795-806.
Fang, E. F., Scheibye-Knudsen, M., Brace, L. E., Kassahun, H., SenGupta, T., Nilsen, H., ... & Bohr, V. A. (2014). Defective mitophagy in XPA via PARP-1 hyperactivation and NAD+/SIRT1 reduction. Cell, 157(4), 882-896.
Martens, C. R., Denman, B. A., Mazzo, M. R., Armstrong, M. L., Reisdorph, N., McQueen, M. B., ... & Seals, D. R. (2018). Chronic nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged and older adults. Nature communications, 9(1), 1286. https://www.nature.com/articles/s41467-018-03421-7
Trammell, S. A., Schmidt, M. S., Weidemann, B. J., Redpath, P., Jaksch, F., Dellinger, R. W., ... & Brenner, C. (2016). Nicotinamide riboside is uniquely and orally bioavailable in mice and humans. Nature communications, 7(1), 1-14. https://www.nature.com/articles/ncomms12948
Yoshino, J., Baur, J. A., & Imai, S. I. (2018). NAD+ intermediates: the biology and therapeutic potential of NMN and NR. Cell metabolism, 27(3), 513-528.
Lanza, I. R., Short, D. K., Short, K. R., Raghavakaimal, S., Basu, R., Joyner, M. J., ... & Nair, K. S. (2008). Endurance exercise as a countermeasure for aging. Diabetes, 57(11), 2933-2942. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2570385/
Lautrup, S., Sinclair, D. A., Mattson, M. P., & Fang, E. F. (2019). NAD+ in brain aging and neurodegenerative disorders. Cell metabolism, 30(4), 630-655.
Baur, J. A., Pearson, K. J., Price, N. L., Jamieson, H. A., Lerin, C., Kalra, A., ... & Sinclair, D. A. (2006). Resveratrol improves health and survival of mice on a high-calorie diet. Nature, 444(7117), 337-342. https://www.nature.com/articles/nature05354