What is NAD+?
NAD+ is a coenzyme found in every living cell that is essential for turning nutrients into energy and for running many repair and signalling processes. Its full name is nicotinamide adenine dinucleotide.
NAD+ is often discussed as if you could swallow it directly, but the body largely rebuilds it from smaller building blocks. That is why it is closely tied to a NAD+ precursor such as NMN or nicotinamide riboside. NAD+ also powers the sirtuins and supports the mitochondria, which links it to energy and healthy ageing.
NAD+ interests people focused on longevity, energy, and cellular repair, since its levels tend to fall with age. The catch is that raising a laboratory measurement of NAD+ is not the same as proving a benefit you will feel, and much of the human evidence is still early. Precursors raise NAD+ more reliably than swallowing NAD+ itself.
For a complete NAD+ approach, see our NAD+ Full Stack.
Frequently asked questions
How is it different from NMN?
NAD+ is the finished coenzyme the body uses, while NMN is one of the building blocks it uses to make more. Most supplements provide a precursor rather than NAD+ itself.
Who uses it, or when is it the right choice?
It appeals to people interested in ageing, energy, and repair who want to support declining levels. A precursor-based approach is usually the practical way to do that.
When is it the WRONG choice?
It is the wrong focus if you expect a dramatic, immediate lift, since effects are subtle and gradual. Chasing NAD+ also makes little sense while sleep and exercise are neglected.