How NAD+ levels change with age, and how clinicians approach it

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NAD+ (nicotinamide adenine dinucleotide) doesn't get the public attention that vitamins or hormones do, but it's one of the most important molecules in cellular biology. It's essential for turning nutrients into usable energy, and it participates in a wide range of other cellular processes.
Research indicates that NAD+ levels change with age. This article is an educational overview of what NAD+ does, what the science says about how it changes over time, and how a clinician-guided program approaches NAD+ support.
NAD+ plays two broad roles. First, it's a coenzyme in energy metabolism: the mitochondria rely on it to produce ATP, the cell's energy currency. Second, it's a required input for enzymes involved in cellular maintenance, including the sirtuins (involved in DNA regulation) and PARP enzymes (involved in DNA repair).
Because NAD+ touches so many processes, it's an area of significant scientific interest, which is also why claims about it can outrun the evidence. The established science is about NAD+'s biological roles; much of the rest is still being studied.
Studies measuring NAD+ in human tissue have observed that levels tend to change with age. Several factors are thought to contribute, including increased activity of enzymes that consume NAD+, the ongoing demand of DNA repair, and changes in the body's ability to synthesize NAD+ from dietary precursors.
This is described here as biology, not as a personal prediction. How NAD+ changes for any individual, and whether addressing it is appropriate, is a clinical question.
NAD+ can be approached in several ways. Over-the-counter precursors such as NMN and NR are widely sold, though their absorption and product quality vary. Clinician-guided approaches use different delivery methods intended to improve how much reaches the body.
Luvo offers NAD+ through three delivery methods: injection, oral liquid drops, and nasal spray, each with a different absorption profile. Which method, dose, and frequency is appropriate is determined by a licensed clinician based on your health history and goals. These are provided through a clinician-guided program rather than sold as a one-size-fits-all product.
If you're interested in NAD+ and want to understand the clinician-guided options, start with the short Luvo questionnaire so we can help you understand whether NAD+ support is appropriate for you. Explore Luvo's NAD+ options: injection, oral liquid drops, and nasal spray.