A new study suggests that drinking filtered coffee may be associated with slower biological ageing compared with drinking instant coffee. The reporting focuses on differences in coffee preparation methods and how they may relate to markers of ageing in the body. According to the article, the research compares outcomes for people who drink filtered coffee with those who consume instant coffee, with findings indicating a potential protective effect for filtered coffee. The sources describe this as a new line of evidence rather than a definitive conclusion, and they frame the results as suggestive of a slowdown in ageing processes rather than a guaranteed health outcome.
However, the available information in the provided summaries does not specify key methodological details such as the study size, population, how ageing is measured, whether results account for lifestyle differences between coffee drinkers, or whether the findings imply causation. As presented, the study highlights an association that may motivate further research into how different types of coffee contribute to health over time.