When people think about hyperbaric oxygen therapy, they usually think about oxygen alone. But oxygen is only part of the story. Inside the cell, energy production also depends on molecules that help transfer electrons, regulate repair, and support mitochondrial function. One of the most important of these is NAD+. NAD+ is a central coenzyme in energy metabolism, redox balance, DNA repair and signalling pathways involving sirtuins and PARPs, which is why it keeps appearing in conversations about recovery, resilience and ageing.
Why does NAD+ matter so much?
NAD+ is present in every living cell. It helps shuttle electrons during the reactions that allow the body to generate ATP, the main energy currency of the cell. In practical terms, this means NAD+ sits at the centre of mitochondrial activity, metabolic flexibility and the body’s ability to respond to stress. It is also used by enzymes involved in cellular maintenance and repair, which is one reason why NAD+ is often discussed in the context of long term resilience rather than just short term “energy.”
This matters even more when the body is under strain. Ageing, ongoing inflammation, oxidative stress, disrupted sleep, higher metabolic demand and periods of slower recovery can all place pressure on pathways linked to mitochondrial function and NAD+ metabolism. Reviews of the field describe declining NAD+ availability as one of the recurring features seen in age related and metabolically stressed states.
https://pmc.ncbi.nlm.nih.gov/
What happens when metabolic pathways become less efficient?
When metabolism is running smoothly, oxygen delivery, mitochondrial function and redox balance work together. But when recovery is slower or the system is under pressure, cells may not use energy as efficiently as they should. This does not mean every health issue comes down to NAD+, but it does explain why support aimed at mitochondrial health and NAD dependent pathways has become such a strong area of interest.
It is also why many people begin looking beyond simple symptom management. They want to understand whether there are deeper processes involved, especially when the pattern includes fatigue, poor resilience, slower healing or feeling as though the body is not bouncing back in the way it used to.
Can nutritional support play a role?
It can, but this is where nuance matters.
Most of the strongest human research on increasing circulating NAD related markers has focused on NAD+ precursors, especially nicotinamide riboside, NR, and nicotinamide mononucleotide, NMN, rather than direct oral NAD+ itself. Reviews note that direct oral NAD+ has stability and bioavailability limitations, while NR and NMN have shown clearer oral bioavailability and measurable increases in blood NAD+ related metabolites in human studies.
https://www.nature.com/
That said, NAD+ itself is still a biologically central molecule, and it makes sense that people are interested in formulations built around it, especially when combined with other compounds discussed in the context of oxidative balance and mitochondrial signalling. At Body Therapy, the BestNAD+ formula combines 570 mg NAD+ with 149.5 mg trans-resveratrol, and the product is positioned around oxidative balance, circulatory support and mitochondrial processes. That makes it relevant to the broader conversation around cellular energy, even if the oral research base is stronger for precursors than for direct NAD+ supplementation.
Where does resveratrol fit into the picture?
Resveratrol is often discussed alongside pathways involving oxidative balance, mitochondrial signalling and SIRT1. This is one reason it is frequently paired with NAD focused products. Mechanistically, the pairing makes sense. It sits within the same broader conversation around redox signalling, cellular stress responses and metabolic support.
At the same time, it is worth staying balanced. A 2025 systematic review and dose response meta analysis of randomized controlled trials found that resveratrol supplementation did not show a significant overall effect on human SIRT1, although the authors noted that dose and regimen may still matter. So it is reasonable to describe resveratrol as part of a supportive metabolic and antioxidant framework, but not as a guaranteed switch for SIRT1 activation in real life.
Why does NAD+ matter so much?
NAD+ is present in every living cell. It helps shuttle electrons during the reactions that allow the body to generate ATP, the main energy currency of the cell. In practical terms, this means NAD+ sits at the centre of mitochondrial activity, metabolic flexibility and the body’s ability to respond to stress. It is also used by enzymes involved in cellular maintenance and repair, which is one reason why NAD+ is often discussed in the context of long term resilience rather than just short term “energy.”
This matters even more when the body is under strain. Ageing, ongoing inflammation, oxidative stress, disrupted sleep, higher metabolic demand and periods of slower recovery can all place pressure on pathways linked to mitochondrial function and NAD+ metabolism. Reviews of the field describe declining NAD+ availability as one of the recurring features seen in age related and metabolically stressed states.
What happens when metabolic pathways become less efficient?
When metabolism is running smoothly, oxygen delivery, mitochondrial function and redox balance work together. But when recovery is slower or the system is under pressure, cells may not use energy as efficiently as they should. This does not mean every health issue comes down to NAD+, but it does explain why support aimed at mitochondrial health and NAD dependent pathways has become such a strong area of interest.
It is also why many people begin looking beyond simple symptom management. They want to understand whether there are deeper processes involved, especially when the pattern includes fatigue, poor resilience, slower healing or feeling as though the body is not bouncing back in the way it used to.
Can nutritional support play a role?
It can, but this is where nuance matters.
Most of the strongest human research on increasing circulating NAD related markers has focused on NAD+ precursors, especially nicotinamide riboside, NR, and nicotinamide mononucleotide, NMN, rather than direct oral NAD+ itself. Reviews note that direct oral NAD+ has stability and bioavailability limitations, while NR and NMN have shown clearer oral bioavailability and measurable increases in blood NAD+ related metabolites in human studies.
That said, NAD+ itself is still a biologically central molecule, and it makes sense that people are interested in formulations built around it, especially when combined with other compounds discussed in the context of oxidative balance and mitochondrial signalling. At Body Therapy, the BestNAD+ formula combines 570 mg NAD+ with 149.5 mg trans-resveratrol, and the product is positioned around oxidative balance, circulatory support and mitochondrial processes. That makes it relevant to the broader conversation around cellular energy, even if the oral research base is stronger for precursors than for direct NAD+ supplementation.
Where does resveratrol fit into the picture?
Resveratrol is often discussed alongside pathways involving oxidative balance, mitochondrial signalling and SIRT1. This is one reason it is frequently paired with NAD focused products. Mechanistically, the pairing makes sense. It sits within the same broader conversation around redox signalling, cellular stress responses and metabolic support.
At the same time, it is worth staying balanced. A 2025 systematic review and dose response meta analysis of randomized controlled trials found that resveratrol supplementation did not show a significant overall effect on human SIRT1, although the authors noted that dose and regimen may still matter. So it is reasonable to describe resveratrol as part of a supportive metabolic and antioxidant framework, but not as a guaranteed switch for SIRT1 activation in real life.
So where does HBOT come into this?
This is where the conversation becomes especially interesting.
Hyperbaric oxygen therapy is often explained through oxygen delivery alone, but its biological effects go beyond simply “more oxygen.” Mitochondria are at the centre of that story, because they are the main site of oxygen use inside the cell. Reviews on HBOT and mitochondrial function describe effects on mitochondrial activity, oxidative stress signalling, antioxidant defence and mitochondrial biogenesis, especially when HBOT is used in repeated, structured protocols rather than viewed as a single isolated exposure.
Importantly for this topic, one review states that the hyperoxic environment during HBOT can increase NADH consumption and raise NAD+ levels, helping activate SIRT1 and supporting mitochondrial biogenesis. That does not mean HBOT is “an NAD treatment,” but it does suggest that HBOT influences the same metabolic landscape in which NAD+ is highly relevant.
That is the real bridge.
HBOT may help improve oxygen availability to tissues and influence mitochondrial and redox pathways. Nutritional support built around NAD+ related biology may sit alongside that as part of a broader strategy aimed at cellular energy and resilience. These are not identical tools, and one does not replace the other, but they can absolutely belong to the same physiological conversation.
That personalised approach is exactly why this NAD conversation belongs on the blog. Oxygen is only one part of recovery. The body also needs the metabolic capacity to use that oxygen well. Mitochondria matter. Redox balance matters. Repair signalling matters. NAD+ is one of the key molecules sitting in the middle of those processes.
A more honest way to look at it
NAD+ should not be framed as a miracle ingredient, and HBOT should not be reduced to a single mechanism. A more useful way to understand both is this: the body depends on a network of oxygen delivery, mitochondrial function, redox balance and repair pathways. NAD+ is part of that network. HBOT may support that network through oxygen and mitochondrial signalling. Nutritional products that fit into the NAD+ conversation may offer an additional layer of support, depending on the person, the goal and the bigger picture.
Want to support the wider NAD+, oxygen and mitochondrial conversation?
If you would like to explore a nutritional product that fits into this topic, BestNAD+ is the formula we currently stock at Body Therapy, combining NAD+ with trans-resveratrol as part of a broader approach to oxidative balance and metabolic support.
If you are more interested in how HBOT in Hatfield may fit your own recovery, energy or resilience goals, the best place to start is with a consultation. At Body Therapy, the first step is a personalised conversation about your goals, symptoms and the most suitable path forward.
References
Covarrubias AJ, Perrone R, Grozio A, Verdin E. NAD+ metabolism and its roles in cellular processes during ageing. Nature Reviews Molecular Cell Biology. 2021. Available at: https://pmc.ncbi.nlm.nih.gov/
Hadanny A, Efrati S. The Hyperoxic-Hypoxic Paradox. Biomolecules. 2020. Available at: https://pmc.ncbi.nlm.nih.gov/
Katsyuba E, Auwerx J. Modulating NAD+ metabolism, from bench to bedside. EMBO Journal. 2017. Available at: https://pmc.ncbi.nlm.nih.gov/
Nakao M, et al. NMN supplementation and NAD+ metabolism in older adults. Study available via PubMed Central. 2024. Available at: https://pmc.ncbi.nlm.nih.gov/
Resveratrol. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. National Institute of Diabetes and Digestive and Kidney Diseases. Available at: https://www.ncbi.nlm.nih.gov/
