A new study has found that in comparison to non-coffee drinkers, adults who drank moderate amounts (1.5 to 3.5 cups per day) of unsweetened coffee or coffee sweetened with sugar were less likely to die during a 7-year follow-up period. The results for those who used artificial sweeteners were less clear. The findings are published in the Annals of Internal Medicine.
Previous studies observing the health effects of coffee have found that coffee consumption is associated with a lower risk of death but did not distinguish between unsweetened coffee and coffee consumed with sugar or artificial sweeteners. Researchers from Southern Medical University in Guangzhou, China used data from the U.K. Biobank study health behaviour questionnaire to evaluate the associations of consumption of sugar-sweetened, artificially sweetened, and unsweetened coffee with all-cause and cause-specific mortality.