How to Increase NAD+ Levels Naturally: 12 Science-Backed Methods (Updated 2026)

## How to Increase NAD+ Levels Naturally: Lifestyle, Diet, and Exercise Strategies Before considering any supplement or injection, it is worth understanding that several well-studied lifestyle factors can meaningfully influence NAD+ levels. Exercise, caloric restriction, certain dietary compounds, and sleep quality all affect the NAD+ biosynthesis pathways — and optimizing these factors provides a foundation that supplementation alone cannot replace. We are supplement providers, so we have no reason to steer you away from our products unless we genuinely believe you should hear this first. And we do believe that. The lifestyle foundations matter more than any supplement, and getting them right amplifies whatever supplementation you eventually choose to add. ## 12 Ways to Raise NAD+ Naturally ### 1. Intermittent Fasting Fasting is the single most powerful lifestyle intervention for NAD+ production. When you fast, your body activates AMPK, which stimulates NAMPT, the rate-limiting enzyme in NAD+ biosynthesis. Start with a 16:8 schedule (16 hours fasting, 8-hour eating window). Gradually extend to 18:6 as tolerated. Aim for at least 3 to 4 days per week. Stay hydrated with water, black coffee, or plain tea during the fast. ### 2. Exercise, Especially High-Intensity Training Physical activity elevates NAD+ through increased NAMPT enzyme activity, AMPK activation, and enhanced mitochondrial biogenesis. The *Cell Reports* study mentioned above demonstrated the most dramatic increases with high-intensity interval training, though resistance training and even moderate cardio also produced meaningful NAD+ elevation. Practical recommendation: combine 2 to 3 HIIT sessions per week with 2 to 3 resistance training sessions and daily walking. ### 3. Prioritize Sleep Quality NAD+ follows circadian rhythms, peaking during waking hours. Sleep deprivation disrupts this cycle and depletes NAD+ by impairing SIRT1 activity. Aim for 7 to 9 hours in a consistently cool, dark room, and try to maintain the same sleep and wake times even on weekends. ### 4. Eat Foods Rich in NAD+ Precursors Your body can build NAD+ from dietary niacin and tryptophan. The best sources include chicken breast (14mg niacin per 3oz), tuna (11mg per 3oz), turkey (10mg per 3oz), salmon (8mg per 3oz), and beef liver (15mg per 3oz). Tryptophan-rich foods like eggs, cheese, nuts, and tofu also contribute. Some foods even contain trace amounts of NMN, including edamame, broccoli, and avocado. ### 5. Reduce Chronic Inflammation This one is critically important and often overlooked. A 2016 study in *Cell Metabolism* showed that CD38, an enzyme that consumes NAD+, increases dramatically during chronic inflammation. Reducing inflammation through dietary changes (eliminating processed foods, increasing omega-3s, adding turmeric and ginger), stress management, and regular exercise directly preserves your NAD+ stores. ### 6. Limit Alcohol Alcohol metabolism directly consumes NAD+ through the alcohol dehydrogenase pathway. Heavy drinking can reduce NAD+ by up to 40%. Even moderate regular consumption accelerates age-related decline. If you drink, limit it to 1 to 2 drinks per occasion with multiple alcohol-free days each week. ### 7. Get Morning Sunlight Moderate morning sun exposure helps regulate circadian NAD+ rhythms and supports vitamin D synthesis, which supports mitochondrial function. Aim for 10 to 30 minutes of morning sunlight several times weekly. ### 8. Use Heat Exposure (Sauna) Heat stress activates NAD+-dependent heat shock proteins, sirtuins SIRT1 and SIRT3, and mimics some of the metabolic effects of exercise. Traditional sauna at 175-195 degrees Fahrenheit for 15 to 20 minutes, 3 to 4 times weekly, provides meaningful benefit. ### 9. Try Cold Exposure Cold therapy activates brown fat (which has high NAD+ activity), stimulates mitochondrial biogenesis, and increases metabolic rate. Start with 30-second cold shower endings and work up to 2-minute cold plunges at 50-60 degrees Fahrenheit. ### 10. Manage Chronic Stress Cortisol increases CD38 expression, which chews through your NAD+ stores. Daily meditation (even 10 minutes), deep breathing exercises, time in nature, and meaningful social connections all help keep stress hormones in check and preserve NAD+. ### 11. Maintain a Healthy Weight Excess body fat increases inflammation and CD38 activity while impairing NAD+ metabolism through insulin resistance. The combination of fasting, exercise, and whole-food nutrition addresses weight alongside NAD+ levels. ### 12. Consider Natural Compounds That Support NAD+ Certain foods and supplements inhibit CD38 or activate NAD+-related pathways. Resveratrol (found in red grapes and berries) activates sirtuins. Quercetin (found in onions and apples) may inhibit CD38. Apigenin (found in parsley and chamomile) has also shown CD38-inhibiting properties in research. A daily cup of chamomile tea is an easy, inexpensive addition to your routine. ## Building Your Protocol ### Start Here (Weeks 1-4) Morning routine: 10 minutes of sunlight, skip breakfast to start 16:8 fasting, hydrate. During the day: 30 minutes of walking and niacin-rich foods at lunch and dinner. Evening: dinner by 7 PM, blue light blocking after 8 PM, consistent bedtime. ### Level Up (Weeks 5-8) Add HIIT or resistance training 3 times per week, a weekly sauna session, 18:6 fasting, cold shower endings of 30 seconds, and 10 minutes of daily meditation. ### Go Further (Weeks 9+) Add 20:4 or alternate-day fasting, sauna 3 to 4 times per week, 2-minute cold exposure daily, resveratrol and quercetin supplements, and a comprehensive stress management practice. ## Tracking Your Progress While home NAD+ testing is not widely available, you can track meaningful proxies: energy levels throughout the day, sleep quality and morning alertness, mental clarity and focus, exercise recovery time, and mood stability. Objective measures like resting heart rate (should decrease) and heart rate variability (should increase) also correlate with improving cellular health. ## When Natural Methods Are Not Enough Lifestyle interventions are powerful, but they have limits. If you are over 50 with significant NAD+ depletion, natural methods alone may not restore levels to where they need to be. In those cases, direct NAD+ supplementation through injections or IV therapy can bridge the gap while lifestyle foundations continue to support long-term production. For comprehensive NAD+ protocols and professional-grade supplementation, visit [Prost Biotech](https://www.glunovabio.com/nad-plus/). *This article is for educational purposes. Consult a qualified healthcare professional before making significant changes to your diet, exercise routine, or health regimen.* For more information, see our guide on [NAD+ injection benefits](/guides/nad-injection-benefits-anti-aging-energy-recovery-guide). Learn more about [NAD+ vs NMN vs NR comparison](/guides/nad-vs-nmn-vs-nr-comparison-which-is-better) to enhance your understanding. You may also find our article on [NAD+ and intermittent fasting](/guides/nad-and-intermittent-fasting-synergy-guide) helpful. Our detailed guide on [NAD+ for anti-aging](/guides/nad-for-anti-aging-longevity-science-guide) covers this topic in depth. Explore our resource on [signs of low NAD+ levels](/guides/signs-of-low-nad-levels-in-your-body) for additional insights. For a deeper dive, check out [best time to take NAD+](/guides/best-time-to-take-nad-supplements). --- ## References - [Exercise increases muscle NAD+ levels in older adults](https://doi.org/10.1016/j.celrep.2019.03.078). *Cell Reports*, 2019. - [Fasting, Circadian Rhythms, and Time-Restricted Feeding in Healthy Lifespan](https://doi.org/10.1016/j.cmet.2016.06.001). *Cell Metabolism*, 2016. - [NAD+ metabolism and its roles in cellular processes during ageing](https://doi.org/10.1038/s41580-020-00313-x). *Nature Reviews Molecular Cell Biology*, 2021. - [CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction](https://doi.org/10.1016/j.cmet.2016.05.006). *Cell Metabolism*, 2016. - [Dietary NMN supplementation enhances motor function in aging mice](https://doi.org/10.1016/j.cmet.2016.09.013). *Cell Metabolism*, 2016.