You feel anxious, flat, or emotionally off — and you can’t put your finger on why. Your life is fine, broadly speaking. Nothing dramatic has happened. But you feel more irritable, more down, or more worried than you think you should.
Research suggests there may be another piece worth looking at: your gut.
As a CNM Qualified Naturopathic Health Coach in Dubai, KHDA approved and trained at the College of Naturopathic Medicine, I think the research on the gut-mood connection is one of the most important and underappreciated areas of health for women. It is not widely talked about in everyday healthcare — but the science is well-established and genuinely relevant.
What Research Has Found About the Gut and the Brain
Research has established that the gut has its own nervous system — a vast network of nerve cells lining the digestive tract that communicates directly with the brain. Scientists have called this the “second brain.” In recent years, studies have gone much further in understanding exactly how this connection works.
A landmark area of research has found that a very large proportion of the body’s serotonin — often referred to as the “feel-good” chemical — is produced in the gut, not the brain. Studies estimate that around 90 to 95 percent of the body’s serotonin is made in the digestive system. Research has found this gut-produced serotonin plays a role in influencing mood, anxiety, and emotional regulation.
Studies published in Nature Microbiology and other leading journals have found that specific types of gut bacteria are involved in producing serotonin and other mood-related chemicals. Research has found that people with lower gut bacteria diversity show differences in mood-related chemical production — and that improving gut bacteria diversity is associated with measurable improvements in mood and anxiety levels.
The Research on Gut Bacteria and Mental Wellbeing
Studies specifically examining the relationship between gut bacteria and mental health have produced some striking findings:
A study published in Nature Communications analysed gut bacteria from over a thousand people and found that two types of bacteria were consistently lower in people experiencing depression, regardless of antidepressant use. The researchers noted the association was strong enough to suggest a potential role of gut bacteria in emotional wellbeing.
Research from University College Cork found that people who consumed fermented milk products containing specific probiotic bacteria for four weeks showed measurable changes in brain activity in response to emotional stimuli — compared to those who consumed plain milk. The researchers described this as evidence of a direct gut-to-brain communication pathway that can be influenced through diet.
A review published in the journal Psychiatry Research found that people with anxiety and depression consistently showed differences in gut bacteria composition compared to those without these conditions — and that dietary interventions supporting gut bacteria were associated with improvement in mood-related symptoms in several studies.
Why This Is Worth Knowing as a Woman in Dubai
Women in Dubai are often living wonderfully full lives — building careers, raising families, enjoying one of the world’s most vibrant cities, and nurturing friendships and communities here. Research on busy, active lifestyles consistently shows that the gut-mood connection is particularly relevant: stress, dietary variety, and gut recovery all have a measurable effect on emotional wellbeing.
If gut bacteria contribute to mood regulation — which the research suggests they do — then actively supporting your gut becomes part of supporting your emotional health as well. Not instead of other approaches, but alongside them.
This is genuinely empowering information. It means some of what feels purely emotional may have a physical, addressable component. And it means the same changes that help your digestion — more plant variety, fermented foods, better sleep — may also contribute to feeling more even, calmer, and more resilient.
What Research Suggests Helps Both Gut and Mood
Several of the same interventions that support gut health have been found in research to also support mood:
Fermented foods. The University College Cork study mentioned above used fermented foods as the intervention. Research from Stanford found that diets high in fermented foods reduced markers of immune stress and increased gut bacteria diversity — both of which are linked in research to better mood.
Plant variety and fibre. Research has found that dietary fibre feeds the specific gut bacteria associated with better mood regulation. Studies suggest that the fastest way to shift gut bacteria in a positive direction is through consistent increases in plant food variety.
Omega-3 fats. Research has found associations between higher intake of omega-3 fatty acids — found in oily fish like salmon, sardines, and mackerel — and reduced rates of depression and anxiety. Studies suggest omega-3s may support the gut-brain communication pathway as well as having direct effects on brain chemistry.
Managing stress actively. Given what research shows about stress and gut bacteria, stress management is not just a mental health tool — it is a gut health tool too. Studies on mindfulness, walking, and time in nature all show positive effects on both gut bacteria composition and mood.
For more on gut health, visit the Gut Health page.
One thing you can do today:
Add one fermented food to your day — natural yoghurt with breakfast, a small glass of kefir, or a spoonful of sauerkraut with lunch. Research suggests consistency over weeks and months produces the meaningful shift in gut bacteria that affects mood. Start today and keep it simple.
If you’d like support with this:
I work with women in Dubai and across the GCC as a CNM Qualified Naturopathic Health Coach. If mood, anxiety, and gut symptoms have been showing up together, exploring the gut picture often reveals something useful. Learn more about working with me →
This article is for educational purposes only and does not constitute medical advice. If you are experiencing mental health symptoms, please speak with your GP or a qualified mental health professional.
To explore more about women’s gut health and what a naturopathic approach looks like in practice, visit the Women’s Gut Health resource page.
