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Black or Low-Additive Coffee Before Noon Linked to 14% Lower Mortality Risk

Researchers identify a two-to-three-cup morning coffee ritual as ideal for harnessing protective bioactive compounds.

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Drinking coffee

Overview

  • A Tufts University analysis of 46,332 US adults over 9–11 years found that drinking black or minimally sweetened coffee was associated with a 14 percent reduction in all-cause mortality compared to non-drinkers.
  • The mortality benefit was absent in beverages containing high levels of added sugar or saturated fat, indicating that additives can negate coffee’s protective effects.
  • Consuming two to three cups per day emerged as the optimal range for longevity benefits, in line with dietary recommendations to limit added sugars and fats.
  • Drinking coffee before noon correlated with lower cardiovascular death rates, whereas afternoon or evening intake may disrupt sleep and undermine heart health.
  • Authors attribute the associations to bioactive compounds such as caffeine, chlorogenic acid and polyphenols, though they acknowledge the observational design cannot confirm causation.