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NR

Also known as Nicotinamide riboside

What it is: NAD+ precursor
What it does: Converted intracellularly to NAD+ and supports mitochondrial and sirtuin pathways
Status: Widely used supplement
Evidence: Low to Moderate. Emerging human data.
Uses: Energy; metabolic and cognitive support; longevity interest

Caution. Long-term human data are limited; generally well tolerated in trials.

Summary

Nicotinamide riboside (NR) is another NAD+ precursor that is taken up by cells and converted into NAD+, supporting mitochondrial function and sirtuin activity. Human trials show it can raise NAD+ levels, and it is used in many longevity-oriented protocols. As with other NAD+ boosters, long-term clinical outcomes are still being defined.

Checked Jul 19, 2026.

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This entry summarises published information in plain language. It is not medical advice, a dosing recommendation or a substitute for a qualified healthcare professional. Many peptides are not approved for human use, and legal status varies by country. Check anything you rely on against primary sources.