In Short
Yes. Menopause can affect your gut health. Research suggests that the hormonal changes occurring through perimenopause and menopause are associated with changes in the gut microbiome and intestinal barrier.
Interestingly, the relationship may work both ways, with certain gut microbes also playing a role in how your body processes oestrogen.
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📖 5 min read- How does menopause change your gut microbiome?
- What is the estrobolome and why does it matter during menopause?
- Can menopause affect your intestinal barrier?
- Are bloating, constipation and digestive changes part of menopause?
- How can you support gut health during and after menopause?
- Frequently asked questions
Your gut may begin changing before your final menstrual period. In a 2026 longitudinal study of 964 women, blood markers associated with changes in the intestinal barrier began rising around two to two-and-a-half years before the final menstrual period and continued changing for several years afterwards. (R)
The hormonal transition through perimenopause and menopause is associated with changes in the gut microbiome, the community of microorganisms living in your digestive tract, as well as changes in the intestinal barrier and gastrointestinal function. (R) (R)
The relationship also appears to work in both directions. Your gut microbes can participate in the metabolism and recycling of oestrogens, creating a fascinating connection between your hormones and digestive system. (R)
How Does Menopause Change Your Gut Microbiome?
To understand the connection, it helps to start with your gut microbiome. This ecosystem contains trillions of microorganisms and a vast collection of microbial genes capable of producing enzymes and metabolites that interact with your body.
One of the largest human studies examining menopause and the gut microbiome analysed stool samples from 2,300 adults, including 1,322 premenopausal and postmenopausal women. Postmenopausal women showed differences in overall microbial composition and specific bacterial species compared with premenopausal women, with a trend towards lower microbial diversity. (R)
Interestingly, the microbiomes of postmenopausal women became more similar to those of men than the microbiomes of premenopausal women were. (R) This suggests that changing sex-hormone exposure may be one of several factors shaping your intestinal microbial ecosystem through midlife. But the relationship becomes even more interesting when you look at what your gut bacteria can do with oestrogen.
What Is the Estrobolome and Why Does It Matter During Menopause?
Your gut does more than digest food. Some intestinal microbes contain genes involved in oestrogen metabolism, collectively described as the estrobolome. After oestrogens are processed by your liver, conjugated forms can enter your intestine through bile. Certain gut bacteria produce enzymes, including β-glucuronidase, that can remove these conjugated groups. This can allow some oestrogen to be reabsorbed through the intestine and returned to circulation, a process known as enterohepatic circulation.
Human research has linked gut microbial richness and β-glucuronidase activity with patterns of non-ovarian oestrogen metabolism. (R) In postmenopausal women specifically, studies have found associations between gut microbial diversity and urinary oestrogens and oestrogen metabolites. (R) A later study of 164 healthy postmenopausal women also identified relationships between measures of microbial diversity and specific pathways of oestrogen metabolism. (R)
These studies demonstrate an association rather than proving that changing your microbiome will alter your hormones in a predictable way. Still, they reveal just how closely connected your gut microbiome and hormonal environment can be.
Meet the Estrobolome
Some of your gut microbes contain genes and produce enzymes involved in oestrogen metabolism, creating a two-way connection between your intestinal ecosystem and hormonal environment.
Can Menopause Affect Your Intestinal Barrier?
Your intestinal lining is not simply a wall. It is a selectively permeable biological barrier formed by intestinal epithelial cells, which help regulate what passes between your digestive tract and the rest of your body.
Recent longitudinal evidence suggests this barrier also changes across menopause. Researchers followed 964 women and measured fatty acid-binding protein 2 (FABP2), a marker associated with intestinal epithelial injury, and soluble CD14 (sCD14), a marker associated with immune responses to microbial products. Both increased across the menopausal transition, with changes beginning before the final menstrual period. (R)
Importantly, these are blood biomarkers rather than direct measurements of intestinal permeability, so the findings should not be interpreted as meaning that every woman develops a clinical “leaky gut”. The researchers concluded that menopause was associated with increasing markers of compromised gut epithelial barrier integrity, providing an important new direction for understanding gut health through midlife. (R)
“Leaky Gut” Is an Oversimplification
Research suggests markers related to intestinal barrier biology change across menopause, but these biomarkers are not direct measurements of intestinal permeability and do not show that every woman develops a clinical “leaky gut”.
Are Bloating, Constipation and Digestive Changes Part of Menopause?
A long-running study following women through the menopausal transition examined constipation and diarrhoea alongside reproductive hormones, stress-related hormones and psychological factors. After multiple variables were considered together, reproductive hormone biomarkers were not significant predictors of constipation or diarrhoea severity. Tension and cortisol were associated with constipation, while tension and age were associated with diarrhoea. (R)
This is an important distinction. Menopause can coincide with digestive changes, but a new gastrointestinal symptom should not automatically be attributed to changing oestrogen levels.
Your gut is influenced by interconnected factors, including diet, stress, physical activity, medications and ageing alongside hormonal changes. That also means there are everyday behaviours that can help you support this adaptable ecosystem.
How Can You Support Gut Health During and After Menopause?
One of the most useful things to know about your gut microbiome is that it can respond to your dietary environment. Rather than searching for one “perfect” food, research supports looking at the overall pattern and diversity of foods you regularly eat.
In the NU-AGE trial, researchers studied 612 adults aged 65–79 across five European countries. Greater adherence to a Mediterranean-style diet over 12 months was associated with specific microbiome changes, including enrichment of bacterial groups linked with favourable markers of healthy ageing and altered predicted production of microbial metabolites. (R)
A Mediterranean-style eating pattern typically places plant foods at the centre of meals, including vegetables, fruit, legumes, whole grains, nuts and seeds, alongside foods such as olive oil and fish. In the NU-AGE intervention, changing the overall dietary pattern was sufficient to produce measurable changes in the gut microbiome, demonstrating that your microbial ecosystem remains responsive later in life. (R)
Think Dietary Pattern, Not a Single “Gut Health” Food
Research suggests your gut microbiome remains responsive to your dietary environment later in life. A varied eating pattern centred around plant foods can form part of a broader approach to supporting gut health and healthy ageing.
Frequently Asked Questions About Menopause and Gut Health
Can menopause cause gut problems?
Menopause can coincide with changes in gut health, but it is difficult to attribute individual digestive symptoms directly to hormonal changes. Research has found changes in the gut microbiome and markers associated with intestinal barrier integrity across the menopausal transition. However, gastrointestinal symptoms are also influenced by factors including stress, diet, medications, physical activity and ageing. (R) (R)
Can menopause cause bloating and constipation?
Bloating and constipation are commonly discussed during menopause, but the relationship with reproductive hormones is not straightforward. In a longitudinal study examining gastrointestinal symptoms across the menopausal transition, reproductive hormone biomarkers were not significant predictors of constipation or diarrhoea severity after other variables were considered. Psychological tension and cortisol were among the factors associated with constipation severity. (R)
Does menopause cause “leaky gut”?
Current evidence does not establish that menopause causes clinical “leaky gut”. However, a longitudinal study of 964 women found that blood markers associated with intestinal epithelial injury and immune responses to microbial products increased across the menopausal transition, with some changes beginning before the final menstrual period. (R)
These biomarkers are not direct measurements of intestinal permeability, so the findings are better understood as evidence that intestinal barrier biology may change during menopause rather than proof that menopause causes “leaky gut”.
How can you support your gut health during menopause?
Diet is one modifiable factor that can influence the gut microbiome as you age. In the NU-AGE trial involving 612 older adults across five European countries, greater adherence to a Mediterranean-style diet over 12 months was associated with measurable changes in the gut microbiome and enrichment of bacterial groups associated with favourable markers of healthy ageing. (R)
A Mediterranean-style eating pattern typically emphasises vegetables, fruit, legumes, whole grains, nuts and seeds, alongside foods such as olive oil and fish. Rather than focusing on a single “gut health” food, the evidence supports considering your overall dietary pattern.
Your Gut and Hormones Are Part of the Same Ageing Story
Menopause is a whole-body transition, and your digestive system is part of that story. Human research indicates that the menopausal transition is associated with changes in gut microbial composition, oestrogen-related microbial functions and markers of intestinal barrier integrity. (R) (R)
At the same time, the science is still developing. Not every digestive change during menopause is caused directly by hormones, and individual gut microbiomes vary considerably. What the research does show is encouraging: your gut remains a dynamic ecosystem throughout ageing, and healthy dietary patterns can measurably influence it. (R) Supporting your gut health can therefore sit naturally alongside the other everyday habits that help you invest in long-term vitality and wellbeing.
