THURSDAY, AUGUST 20, 2026
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Health 20 AUGUST, 2026

This Popular Brain Supplement Was Linked to Shorter Lifespans in Men

A recent study found a link between high tyrosine levels and reduced life expectancy in men, raising concerns about the potential risks associated with this popular brain supplement.
NEWS DESK PUBLISHED: AUGUST 20, 2026
📖 3 MIN READ

A New Study Uncovers the Hidden Connection Between Tyrosine and Longevity

Researchers from the University of Hong Kong and the University of Georgia have recently published a groundbreaking study in the journal Aging-US, shedding light on the potential link between tyrosine levels and lifespan in men.

Amino acids are the building blocks of proteins, and they play a vital role in various biological functions, including metabolism and brain activity. Tyrosine, in particular, is a crucial amino acid that helps regulate neurotransmitter production and is often used as a dietary supplement for energy and cognitive performance.

However, the new study has raised concerns about the potential risks associated with high tyrosine levels in men. Analyzing data from over 270,000 participants in the UK Biobank, the researchers found a consistent link between higher tyrosine levels and reduced life expectancy in men.

The study’s findings suggest that elevated tyrosine levels could shorten men’s lifespan by nearly one year. Interestingly, the researchers also discovered that women did not show the same pattern, and their findings did not reveal any significant association between tyrosine levels and lifespan.

The researchers suspect that hormone-related pathways may play a role in explaining why the apparent lifespan effect was observed only in men. They also propose that tyrosine may affect the production of neurotransmitters involved in the body’s stress response, which could potentially influence long-term health and aging.

While the study does not directly examine tyrosine supplements, the findings suggest that naturally occurring blood levels of the amino acid may be worth further investigation. The researchers note that dietary strategies such as reducing overall protein intake may help lower tyrosine levels, and future studies will be needed to determine whether such approaches can safely improve healthy aging and lifespan.

The study highlights an intriguing possibility that a nutrient best known for supporting brain chemistry may also have an unexpected connection to how long people live. As scientists continue to unravel the mysteries of aging and longevity, this research provides valuable insights into the potential risks and benefits associated with tyrosine levels in men.

Key Findings:

  • The study analyzed data from over 270,000 participants in the UK Biobank.
  • Higher tyrosine levels were consistently linked to reduced life expectancy in men.
  • The researchers estimated that elevated tyrosine levels could shorten men’s lifespan by nearly one year.
  • Women did not show the same pattern, and their findings did not reveal any significant association between tyrosine levels and lifespan.
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