Head to head
NMN against Trigonelline
Two NAD precursors at different stages. Trigonelline is found in coffee and fenugreek, improved muscle function in aged mice and worms, is lower in people with sarcopenia, and has no human intervention trial.
Column A
NMNNicotinamide Mononucleotide
A direct NAD+ precursor studied for metabolic and physical-function benefits in aging, with early human trials and a contested regulatory status in the US.
Column B
TrigonellineTrigonelline (coffee and fenugreek alkaloid)
A natural NAD+ precursor found in coffee and fenugreek that improved muscle function in aged mice and worms and is lower in people with sarcopenia; no human intervention trial yet.
Side by side, on the facts we can check
| Attribute | NMN | Trigonelline |
|---|---|---|
| Category | Longevity | Longevity |
| FDA status | Not an approved drug; US supplement status contested | Dietary supplement; not a drug |
| Half-life | Short | Not established |
| Molecular weight | 334.2 Da | 137.1 Da |
| Mechanism | Converts to NAD+ through the salvage pathway, aiming to restore NAD+ levels that decline with age. | Feeds NAD+ synthesis and supports mitochondrial function in skeletal muscle. |
| Human studies cited | 2 | 0 |
| Legal status, US | Not approved; FDA excluded it from the supplement definition (2022) | Sold as a dietary supplement |
Frequently asked questions
What is the difference between NMN and Trigonelline?
NMN: A direct NAD+ precursor studied for metabolic and physical-function benefits in aging, with early human trials and a contested regulatory status in the US. Trigonelline: A natural NAD+ precursor found in coffee and fenugreek that improved muscle function in aged mice and worms and is lower in people with sarcopenia; no human intervention trial yet.
Which has stronger research evidence, NMN or Trigonelline?
This database does not grade compounds. It counts what was run in people: 2 of the 3 studies cited on the NMN profile were human work, against 0 of 2 for Trigonelline. Those counts are of our own citation lists and understate any larger literature, and neither is a recommendation.
Are NMN and Trigonelline FDA-approved?
NMN: Not an approved drug; US supplement status contested. Trigonelline: Dietary supplement; not a drug.
Related posts
Blog articles that cover NMN or Trigonelline, newest first.
- Longevity / Sep 8, 2026 / 9 minThe Rapamycin Dosing Debate: What PEARL Tested, the Bioavailability Problem, and What Is Unproven
- Metabolic / Sep 8, 2026 / 7 minSLU-PP-332 and 5-Amino-1MQ: Two 'Peptides' That Are Not Peptides, and What the Mouse Data Actually Show
- Longevity / Sep 8, 2026 / 8 minNMN vs NR vs NAD+: The 2026 Head-to-Head Human Trials, and Who Funded the Comparisons
Reviewed Sep 2026. This page sets two published records side by side. It is educational, it is not medical advice, and it contains no dosing protocols or recommendations for personal use.