Overview
- A peer-reviewed study in Aging of 1,669 adults (509 from TwinsUK and 1,160 from Germany’s KORA) found higher blood theobromine levels associated with younger biological-age signatures.
- Biological age was gauged using DNA methylation epigenetic clocks and DNA methylation–derived telomere length estimates.
- The link appeared specific to theobromine after researchers tested caffeine and other cocoa or coffee metabolites.
- Authors note key limitations including the observational, single timepoint design and European-only cohorts, leaving causation and broader applicability unproven.
- Investigators are pursuing mechanistic analyses and potential randomized interventions, and they advise against eating more chocolate given sugar and fat content.