Caffeine consumption does not seem to be associated with an increased risk of endometriosis overall, higher caffeine intake may be linked to an elevated risk, and more research is required to understand this potential dose-dependent relationship and account for unidentified biases.
This systematic review and meta-analysis investigated the relationship between caffeine consumption and endometriosis risk. Analyzing ten studies, including five cohort and five case-control studies, the research found no significant overall association between caffeine intake and endometriosis risk compared to women with low or no caffeine consumption. However, when stratified by caffeine intake levels, high caffeine consumption was linked to an increased risk of endometriosis, while moderate intake showed no significant association. The study concludes that while caffeine consumption as a whole does not seem to be associated with heightened endometriosis risk, a dose-dependent link may exist, warranting further research to understand this potential relationship and account for any unidentified biases.