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Study Links High Tyrosine Levels to Shorter Lifespan in Men

2/28/2026

Summary

Story summary

A study published in Aging-US links higher tyrosine levels with shorter lifespan in men.
Researchers from the University of Hong Kong and the University of Georgia analyzed UK Biobank data from 270,000 individuals.
Initially, both tyrosine and phenylalanine were linked to higher mortality, but only tyrosine showed a consistent association.
The association did not appear in women, and researchers urged further investigation before dietary guidance on tyrosine.

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Story summary

A study published in Aging-US links higher tyrosine levels with shorter lifespan in men.
Researchers from the University of Hong Kong and the University of Georgia analyzed UK Biobank data from 270,000 individuals.
Initially, both tyrosine and phenylalanine were linked to higher mortality, but only tyrosine showed a consistent association.
The association did not appear in women, and researchers urged further investigation before dietary guidance on tyrosine.