Title tag: Perimenopause Bloating: Why Your Gut Is More Involved Than You've Been Told | Gutsi
It's not just the hormones. There's a gut story here that's worth knowing.
If you're in perimenopause and you've noticed your gut becoming increasingly opinionated, you're not alone. Bloating, unpredictable digestion, and a stomach that seems to have stopped following any of its previous rules are among the most commonly reported experiences of women in midlife transition.
The standard answer tends to be "it's hormonal." And that's partly true. But it's not the full picture. Research suggests the gut itself, specifically the gut microbiome and the way it interacts with estrogen, may have a much more central role in what you're experiencing than most people realise.
For many women, gut symptoms may be among the most disruptive parts of perimenopause, and among the least talked about. It's time that changed.
What's Happening in Your Gut During Perimenopause
Perimenopause brings significant hormonal fluctuation, with estrogen levels rising and falling in increasingly unpredictable patterns before eventually declining. A 2017 review by Baker and colleagues in the journal Maturitas suggests these fluctuations appear to influence gut function in a number of ways.
Estrogen appears to play a role in regulating gut motility, the speed at which food moves through the digestive system. Baker and colleagues found that declining or fluctuating estrogen has been associated in some studies with slower gut transit, which may contribute to bloating and constipation. Fluctuating hormones also appear to influence gut permeability and the composition of gut bacteria.
At the same time, the gut microbiome appears to respond to these hormonal changes, and may in turn influence them. This circular relationship is one reason why gut symptoms in perimenopause can feel so unpredictable, and why treating them as purely hormonal may miss part of what's actually going on.
The Estrobolome Connection
One of the most interesting areas of emerging research is the estrobolome: the specific community of gut bacteria that appears to be involved in metabolising estrogen in the body.
Research by Fuhrman and colleagues, published in the Journal of Clinical Endocrinology and Metabolism (2014), suggests that the composition and diversity of your estrobolome may influence how estrogen is processed and eliminated, and in turn, how much circulating estrogen remains in your system. In simpler terms: your gut bacteria may be playing an active role in your hormone balance, in a way that researchers are still working to fully understand.
Kwa and colleagues, writing in the Journal of the National Cancer Institute (2016), found that a less diverse or imbalanced gut microbiome appears to be associated with altered estrogen metabolism, which may have implications for the severity of perimenopausal symptoms, though the science here is still developing. What this seems to suggest is that supporting gut microbiome diversity may be one piece of the perimenopause puzzle worth paying attention to.
Tracking What Your Gut Is Actually Doing
Understanding what's happening in your gut during perimenopause starts with noticing. What triggers bloating for you? Does it seem to shift with your cycle? Does constipation and fatigue arrive together, or is it always different? These patterns are useful data, and most women never have the opportunity to collect them.
Try out our gut wellness quiz to find out more about your gut.
