Story perspectives

Filtered Coffee Slows, Instant Coffee Speeds Aging, UK Study Shows

7/21/2026

Summary

Story summary

A UK study found filtered coffee associated with slower biological aging, while instant coffee linked to faster aging.
Researchers analyzed 49,414 UK Biobank participants and measured three aging biomarkers.
Instant coffee users who were male, 60 or older, or current smokers showed higher age-acceleration scores.
Cystatin C, basal metabolic rate and GlycA mediated 14-24% of the coffee-aging link, limiting causal inference because the study is cross-sectional.

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Story summary

A UK study found filtered coffee associated with slower biological aging, while instant coffee linked to faster aging.
Researchers analyzed 49,414 UK Biobank participants and measured three aging biomarkers.
Instant coffee users who were male, 60 or older, or current smokers showed higher age-acceleration scores.
Cystatin C, basal metabolic rate and GlycA mediated 14-24% of the coffee-aging link, limiting causal inference because the study is cross-sectional.