Tryptophan

Biomarker1 paper1 finding

Humans1

Associations

1

Lifespan

upin humans1OR 2.7

1 study

Tryptophan is associated with lifespan in humans (OR = 2.7, P = 6x10-5).
“higher levels of tryptophan were associated with higher odds of longevity (OR = 2.7, P = 6x10-5)”
Humansadjusted for race, clinic site, study, BMI, eGFR, and ageserum
Metabolomics of Human Aging and Longevity · GSA 2025 abstract · 31 Dec 2025

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