Does NAD+ Help Long Covid? What the Research Shows

<h1>Does NAD+ Help Long Covid? What the Research Shows</h1>

<p><strong>Yes, emerging research suggests that boosting NAD+ levels may help alleviate some Long Covid symptoms, particularly fatigue, brain fog, and sleep disturbances.</strong> A recent 2025 clinical trial found that while NAD+ supplementation didn't drastically change overall cognitive scores compared to a placebo, participants who took it for at least 10 weeks reported noticeable improvements in their energy levels, sleep quality, and mood. By supporting cellular energy production and reducing inflammation, NAD+ offers a promising avenue for those struggling with the lingering effects of the virus.</p>

<h2>Understanding the NAD+ and Long Covid Connection</h2>

<p>If you have been battling Long Covid for months, you know the profound exhaustion and mental cloudiness that can make even simple daily tasks feel insurmountable. You are not alone, and the scientific community is actively searching for answers. One of the most compelling areas of current research focuses on a molecule called Nicotinamide Adenine Dinucleotide, or NAD+.</p>

<p>NAD+ is a crucial coenzyme found in every cell of your body. It plays an essential role in energy metabolism, DNA repair, and cellular defense mechanisms. When your body fights off a severe viral infection like COVID-19, it consumes massive amounts of NAD+ to fuel the immune response and repair damaged tissues. This intense demand can lead to a significant depletion of NAD+ levels, leaving your cells struggling to produce the energy (ATP) needed for normal function. This cellular energy crisis is increasingly believed to be a core driver of the persistent fatigue and brain fog that characterize Long Covid.</p>

<h2>What the Latest Clinical Trials Reveal</h2>

<p>The scientific understanding of NAD+ in the context of Long Covid is rapidly evolving. A landmark 2025 randomized controlled trial published in <em>eClinicalMedicine</em> (part of <em>The Lancet</em> Discovery Science) investigated the effects of high-dose nicotinamide riboside (NR), a precursor that boosts NAD+ levels, in patients with Long Covid. The study, conducted at Massachusetts General Hospital, aimed to see if restoring NAD+ could improve cognitive function and ease common symptoms.</p>

<p>The findings offer a nuanced but hopeful picture. While the study did not show major differences in primary cognitive scores between the treatment and placebo groups over the initial period, a deeper look at the data revealed significant benefits for those who stayed on the supplement longer. In exploratory analyses of participants who took the NAD+ booster for at least 10 weeks, researchers observed marked improvements in self-reported fatigue, sleep quality, and depressive symptoms. Furthermore, these individuals showed better performance on tasks related to executive functioning—the mental skills needed to plan, organize, and focus.</p>

<p>These results suggest that while NAD+ might not be an overnight cure, consistently supporting your cellular energy pathways over time can help your body gradually recover its vitality and mental clarity.</p>

<h2>Beyond NAD+: The Role of Medicinal Mushrooms in Recovery</h2>

<p>While boosting NAD+ is a vital step in addressing the cellular energy deficit, Long Covid is a complex, multi-system condition. It often involves ongoing neuroinflammation, immune dysregulation, and autonomic nervous system dysfunction. To achieve comprehensive healing, many researchers and clinicians are looking toward synergistic natural therapies, particularly the use of specific medicinal mushrooms.</p>

<p>A comprehensive 2026 review published in <em>Sage Journals</em>, titled "Long COVID: From Mechanisms to Natural Therapies," highlights the profound potential of these natural compounds. The review specifically cites Lion's Mane for its ability to support the autonomic nervous system, which is often thrown out of balance by the virus, leading to symptoms like heart palpitations and dizziness.</p>

<h3>Lion's Mane for Brain Fog and Neuroregeneration</h3>

<p>The cognitive impairment associated with Long Covid, often described as "brain fog," can be one of the most distressing symptoms. Lion's Mane (<em>Hericium erinaceus</em>) has emerged as a powerful ally for brain health. Research demonstrates that specific compounds in Lion's Mane, known as hericenones and erinacines, actively stimulate the synthesis of Nerve Growth Factor (NGF) in the brain. NGF is a protein crucial for the growth, maintenance, and survival of neurons. By promoting neuroregeneration and reducing neuroinflammation, Lion's Mane can help clear the mental fog, improve focus, and support memory consolidation.</p>

<h3>Cordyceps for Deep Cellular Energy</h3>

<p>If NAD+ helps provide the raw materials for energy, Cordyceps helps optimize the factory. Cordyceps is renowned for its ability to enhance the body's production of adenosine triphosphate (ATP), the primary energy currency of our cells. A recent 2024/2025 randomized controlled trial conducted in Hong Kong focused specifically on a Cordyceps sinensis extract (Cs4) in patients with Long Covid. The results were highly encouraging, showing significant improvements in profound fatigue, insomnia, and a range of other persistent symptoms compared to the control group. By supporting the cellular energy mechanism at a fundamental level, Cordyceps directly combats the debilitating exhaustion of Long Covid.</p>

<h3>Reishi for Immune Rebalancing</h3>

<p>Long Covid is frequently characterized by an immune system that remains stuck in an overactive, inflammatory state long after the initial infection has cleared. Reishi (<em>Ganoderma lucidum</em>) is a revered adaptogen known for its profound immunomodulatory effects. Rather than simply stimulating the immune system, Reishi helps to rebalance it. It has been shown to modulate the production of cytokines, the signaling molecules that drive inflammation. By calming the cytokine storm and reducing systemic inflammation, Reishi helps the body transition from a state of chronic alarm back to a state of restorative balance.</p>

<h2>A Comprehensive Approach to Healing</h2>

<p>Addressing Long Covid requires patience and a multi-faceted approach. While individual supplements can be helpful, combining targeted therapies often yields the best results. This is where a thoughtfully formulated blend can make a significant difference.</p>

<p>If you are looking for a comprehensive way to support your body's healing process, consider exploring <a href="/products/recover">RECOVER by Shrooomz</a>. This specific blend is designed with post-illness recovery in mind, combining the neuro-regenerative power of Lion's Mane, the energy-boosting properties of Cordyceps, and the immune-balancing effects of Reishi. It offers a synergistic approach to addressing the complex web of Long Covid symptoms.</p>

<h2>Comparing Your Recovery Journey</h2>

<p>Understanding how targeted support can impact your daily life is crucial. The table below illustrates the potential differences in managing Long Covid symptoms with and without the comprehensive support of medicinal mushrooms like those found in RECOVER.</p>

<table>

<thead>

<tr>

<th>Symptom / Area of Health</th>

<th>Without Mushroom Support</th>

<th>With Mushroom Support (Lion's Mane, Cordyceps, Reishi)</th>

</tr>

</thead>

<tbody>

<tr>

<td><strong>Brain Fog & Focus</strong></td>

<td>Persistent mental cloudiness, difficulty concentrating on simple tasks.</td>

<td>Gradual clearing of fog, improved focus, and better memory retention (supported by NGF stimulation).</td>

</tr>

<tr>

<td><strong>Physical Energy</strong></td>

<td>Profound, debilitating fatigue that worsens with minimal exertion.</td>

<td>More sustained, stable energy levels throughout the day (supported by enhanced ATP production).</td>

</tr>

<tr>

<td><strong>Sleep Quality</strong></td>

<td>Frequent insomnia, unrefreshing sleep, waking up exhausted.</td>

<td>Deeper, more restorative sleep cycles and waking feeling more rested.</td>

</tr>

<tr>

<td><strong>Immune System State</strong></td>

<td>Chronic low-grade inflammation, feeling constantly "run down."</td>

<td>Balanced immune response, reduced systemic inflammation (cytokine modulation).</td>

</tr>

<tr>

<td><strong>Nervous System</strong></td>

<td>Dysregulated autonomic nervous system, frequent "fight or flight" feeling.</td>

<td>Calmer nervous system, better stress resilience, and reduced anxiety.</td>

</tr>

<tr>

<td><strong>Cellular Repair</strong></td>

<td>Slow recovery, cells struggling with energy deficits (low NAD+).</td>

<td>Enhanced cellular energy and improved capacity for tissue repair.</td>

</tr>

<tr>

<td><strong>Mood & Well-being</strong></td>

<td>Feelings of depression, frustration, and emotional exhaustion.</td>

<td>More stable mood, increased sense of well-being and hopefulness.</td>

</tr>

<tr>

<td><strong>Daily Functioning</strong></td>

<td>Struggling to maintain work, social life, and basic daily routines.</td>

<td>Gradual return to normal activities and improved overall quality of life.</td>

</tr>

</tbody>

</table>

<h2>Frequently Asked Questions</h2>

<h3>Can NAD+ completely cure Long Covid?</h3>

<p>Currently, there is no single "cure" for Long Covid. However, clinical trials suggest that boosting NAD+ levels can significantly help manage and reduce debilitating symptoms like fatigue and brain fog by restoring cellular energy production over time.</p>

<h3>How long does it take to see benefits from NAD+ or mushroom supplements?</h3>

<p>Recovery from Long Covid is a gradual process. In clinical studies, significant improvements in symptoms like fatigue and sleep were typically observed after 10 weeks of consistent supplementation. Patience and consistency are key.</p>

<h3>Are medicinal mushrooms safe to take with other Long Covid treatments?</h3>

<p>Medicinal mushrooms like Lion's Mane, Cordyceps, and Reishi are generally considered safe and well-tolerated. However, because they can modulate the immune system and affect blood sugar or clotting, it is always essential to consult with your healthcare provider before adding them to your regimen, especially if you are on prescription medications.</p>

<h3>Why is a blend of mushrooms better than taking just one?</h3>

<p>Long Covid affects multiple systems in the body—neurological, immune, and metabolic. A synergistic blend, such as the combination found in RECOVER by Shrooomz, addresses these different areas simultaneously. Lion's Mane supports the brain, Cordyceps boosts physical energy, and Reishi balances the immune system, providing a more comprehensive foundation for healing.</p>

<h2>Moving Forward with Hope</h2>

<p>Living with Long Covid is an incredibly challenging journey, and it is completely normal to feel overwhelmed by the lack of clear answers. However, the science is catching up. The emerging research on NAD+ and the profound, multi-system benefits of medicinal mushrooms offer genuine, science-backed reasons for hope. By focusing on restoring cellular energy, reducing inflammation, and supporting neuroregeneration, you can give your body the tools it needs to heal.</p>

<p>If you're looking for a place to start, focusing on comprehensive, natural support can be a gentle and effective step forward. Whether you are exploring ways to manage <a href="/learn/long-covid-fatigue">profound fatigue</a> or seeking solutions for persistent <a href="/learn/long-covid-brain-fog">brain fog</a>, remember that healing is possible, and you don't have to navigate this path alone.</p>

<h2>References</h2>

<ul>

<li>[1] Wu, C. Y., et al. (2025). Effects of nicotinamide riboside on NAD+ levels, cognition, and symptom recovery in Long-COVID: a randomized controlled trial. <em>eClinicalMedicine</em>. <a href="https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(25)00567-X/fulltext">https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(25)00567-X/fulltext</a></li>

<li>[2] ScienceDaily. (2025, December 11). NAD+ supplement shows early promise for long COVID fatigue and brain fog. <a href="https://www.sciencedaily.com/releases/2025/12/251211100629.htm">https://www.sciencedaily.com/releases/2025/12/251211100629.htm</a></li>

<li>[3] Contato, A. G., et al. (2025). Lion’s Mane Mushroom (Hericium erinaceus). <em>PMC</em>. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC12030463/">https://pmc.ncbi.nlm.nih.gov/articles/PMC12030463/</a></li>

<li>[4] Rthm. (2026, March 5). Can Brain Reset Support Memory and Clear Brain Fog in Long Covid? <a href="https://www.rthm.com/resources/blogs/brain-reset-supplement-guide">https://www.rthm.com/resources/blogs/brain-reset-supplement-guide</a></li>

<li>[5] Docherty, S., et al. (2023). The Acute and Chronic Effects of Lion’s Mane Mushroom. <em>PMC</em>. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10675414/">https://pmc.ncbi.nlm.nih.gov/articles/PMC10675414/</a></li>

<li>[6] Chiroeco. (2025, October 3). Help patients build nervous system resilience with lion’s mane mushroom. <a href="https://www.chiroeco.com/help-patients-build-nervous-system-resilience-with-lions-mane-mushroom/">https://www.chiroeco.com/help-patients-build-nervous-system-resilience-with-lions-mane-mushroom/</a></li>

<li>[7] Transformation Health. (2023, July 16). Clearing Long Covid Brain Fog. <a href="https://www.transformationhealth.com.au/post/clearing-long-covid-brain-fog">https://www.transformationhealth.com.au/post/clearing-long-covid-brain-fog</a></li>

<li>[8] Chen, Y., et al. (2025). Randomized, waitlist-controlled trial of Cordyceps sinensis mycelium culture extract Cs4 for long COVID patients in Hong Kong. <em>ScienceOpen</em>. <a href="https://www.scienceopen.com/hosted-document?doi=10.15212/AMM-2024-0089">https://www.scienceopen.com/hosted-document?doi=10.15212/AMM-2024-0089</a></li>

<li>[9] AMM Journal. (2025, February 27). Randomized, waitlist-controlled trial of Cordyceps sinensis mycelium. <a href="https://amm-journal.org/index.php/2025/02/27/cordyceps-sinensis-mycelium/">https://amm-journal.org/index.php/2025/02/27/cordyceps-sinensis-mycelium/</a></li>

<li>[10] ResearchGate. (2026, January 4). Randomized, waitlist-controlled trial of Cordyceps sinensis mycelium culture extract Cs4 for long COVID patients in Hong Kong. <a href="https://www.researchgate.net/publication/389403581_Randomized_waitlist-controlled_trial_of_Cordyceps_sinensis_mycelium_culture_extract_Cs4_for_long_COVID_patients_in_Hong_Kong">https://www.researchgate.net/publication/389403581_Randomized_waitlist-controlled_trial_of_Cordyceps_sinensis_mycelium_culture_extract_Cs4_for_long_COVID_patients_in_Hong_Kong</a></li>

<li>[11] HKU Hub. (2025). Randomized, waitlist-controlled trial of Cordyceps sinensis. <a href="https://hub.hku.hk/handle/10722/360380">https://hub.hku.hk/handle/10722/360380</a></li>

<li>[12] CenterWatch. (2024, July 5). Examining the Function of Cs4 on Post-COVID-19 Disorders. <a href="https://www.centerwatch.com/clinical-trials/listings/NCT06054438/examining-the-function-of-cs4-on-post-covid-19-disorders">https://www.centerwatch.com/clinical-trials/listings/NCT06054438/examining-the-function-of-cs4-on-post-covid-19-disorders</a></li>

<li>[13] Zhao, L., et al. (2025). Immunomodulatory Effects of Ganoderma lucidum Bioactive. <em>PMC</em>. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC12563824/">https://pmc.ncbi.nlm.nih.gov/articles/PMC12563824/</a></li>

<li>[14] Rthm. (2026, March 5). Can M/R/S Mushroom Formula Support Immune Balance. <a href="https://www.rthm.com/resources/blogs/mrs-mushroom-formula-supplement-guide">https://www.rthm.com/resources/blogs/mrs-mushroom-formula-supplement-guide</a></li>

<li>[15] Ekiz, E., et al. (2023). Exploring the Potential Medicinal Benefits of Ganoderma. <em>PMC</em>. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10094145/">https://pmc.ncbi.nlm.nih.gov/articles/PMC10094145/</a></li>

<li>[16] Arunachalam, K., et al. (2022). A concise review of mushrooms antiviral and. <em>ScienceDirect</em>. <a href="https://www.sciencedirect.com/science/article/pii/S2772753X22000120">https://www.sciencedirect.com/science/article/pii/S2772753X22000120</a></li>

</ul>