Gut bacteria may hold the key to balancing estrogen levels

New research highlights a strong connection between gut bacteria and hormone regulation. Scientists have found that specific microbes and enzymes influence how estrogen circulates in the body. The study appears in the Proceedings of the National Academy of Sciences. The findings suggest gut health could play a key role in managing hormone levels. Disruptions in gut bacteria may lead to excess estrogen, which is linked to certain cancers, including breast and endometrial. People in industrialised societies and formula-fed infants show a higher ability to recycle discarded estrogen.

The research opens possibilities for using diet or probiotics to regulate hormones and prevent disease. Meanwhile, other studies point to broader health challenges. About 75% of drug trials in the last 15 years excluded pregnant women, leaving gaps in knowledge about medication safety for this group. Separately, climate change may be extending allergy seasons, with pollen counts remaining high for an estimated 19 extra days each year. The study underscores the potential of gut health strategies for hormone-related disease prevention. It also adds to growing evidence that environmental and societal factors significantly impact health outcomes. Researchers continue to explore these connections in greater depth.