Inside almost every cell in your body are tiny structures called mitochondria. Often described as the cell's power plants, they are responsible for producing the vast majority of the energy your body uses. And like any power plant, they need a reliable supply of fuel and well-functioning machinery to run. NAD+ is central to both.
In this article we look at why mitochondria depend so heavily on NAD+, what happens to that relationship over time, and what the research currently suggests (and what it does not yet prove) about supporting mitochondrial function through NAD+.
How mitochondria make energy
Mitochondria generate energy through a process called oxidative phosphorylation. In simple terms, nutrients are broken down and the electrons released are passed along a series of protein complexes known as the electron transport chain. This flow of electrons ultimately drives the production of ATP, the molecule cells use as energy.
NAD+ is the molecule that delivers many of those electrons to the chain. As it picks up electrons it becomes NADH, carries them to the mitochondria, and releases them, then returns to NAD+ to repeat the cycle. Without an adequate NAD+ supply, the electron transport chain has less to work with, and energy production becomes less efficient.
An important caveat
Mitochondria are the engine; NAD+ helps deliver the fuel. When NAD+ is plentiful, the engine runs smoothly.
The NAD+ and mitochondria feedback loop
The relationship runs in both directions. NAD+ supports mitochondrial energy production, and healthy mitochondria help maintain the conditions cells need to keep regenerating NAD+. Research has also linked NAD+ to sirtuins, enzymes that help regulate mitochondrial quality and the creation of new mitochondria (a process called biogenesis), among other roles.
This interconnection is why scientists pay such close attention to NAD+ when studying mitochondrial health. A decline on one side of the loop can, in principle, affect the other.
What the research suggests
A growing body of laboratory and animal research has explored what happens when NAD+ availability is increased using precursors such as NMN and NR. Reported findings in these models include:
- Improvements in measures of mitochondrial function in aged or stressed tissues.
- Support for the cell’s ability to maintain its energy supply under demand.
- Activation of NAD+-dependent pathways associated with mitochondrial maintenance.
These results are genuinely encouraging and explain much of the scientific excitement around NAD+. Human research is progressing too, with several trials reporting that NAD+ precursors can raise NAD+ markers and are generally well tolerated.
The mitochondrion is where the case for NAD+ is most intuitive: support the fuel supply, and you support the engine.
Synthesised from mitochondrial bioenergetics research
Keeping expectations grounded
As with all emerging science, it is important not to overstate the case. Much of the strongest evidence is preclinical, and translating findings from cells and animals to meaningful human outcomes takes time and rigorous trials. NAD+ is not a cure-all, and it should be understood as one part of a broader picture of cellular health that also includes nutrition, physical activity and sleep.
What is clear is the underlying biology: mitochondria need NAD+ to function, and the health of the two is deeply intertwined. That fundamental relationship is well established, and it is why NAD+ remains one of the most compelling subjects in cellular health research.
KEY TAKEAWAYS
- Mitochondria produce most of the body's energy and rely on NAD+ to deliver electrons for that process.
- NAD+ and mitochondrial health form a two-way loop, linked partly through sirtuin enzymes.
- Preclinical research suggests raising NAD+ can support mitochondrial function; human trials are ongoing.
- The core biology is well established, but strong human outcome claims remain premature.
References & further reading
- Cantó, C., Menzies, K. J., & Auwerx, J. (2015). NAD+ metabolism and the control of energy homeostasis: a balancing act between mitochondria and the nucleus. Cell Metabolism, 22(1), 31–53.
- Verdin, E. (2015). NAD+ in aging, metabolism, and neurodegeneration. Science, 350(6265), 1208–1213.
- Rajman, L., Chwalek, K., & Sinclair, D. A. (2018). Therapeutic potential of NAD-boosting molecules: the in vivo evidence. Cell Metabolism, 27(3), 529–547.
This article is educational background on the underlying science and is not connected to the intended use of any NadGo™ product.
