The Menopause Brain Fog Nobody Talks About and What Your Gut May Have

Brain fog during menopause is real, widely reported, and frequently dismissed. What is less well known is that the gut may have something to do with it. Research suggests the gut-brain axis, the communication network between the gut microbiome and the brain, may influence cognition, mood, and mental clarity in ways that are only beginning to be understood [1].

What the Research Suggests

The gut produces neurotransmitters including serotonin and GABA, and communicates with the brain via the vagus nerve. Research suggests that gut microbiome composition may be associated with cognitive function and mood, though most of this evidence is associative and much comes from animal studies [1]. Human research in this area is growing but remains limited, and findings should not be overstated.

Why Menopause Adds Complexity

Oestrogen has direct effects on brain function, including memory, concentration, and verbal recall [2]. Its decline during menopause is the primary driver of menopausal brain fog for most women. Gut health is unlikely to be the main cause, but it may be a contributing factor for some women, particularly given that oestrogen also influences the gut microbiome via the estrobolome [3].

What This Means in Practice

Menopause brain fog warrants a conversation with a healthcare professional, particularly if it is affecting daily function. Gut-supportive habits, including dietary diversity and consistent sleep, may form a useful part of a wider approach, but should not be positioned as a substitute for appropriate medical support.

Practical Takeaway

If brain fog has been significant since perimenopause began, speak to a GP or menopause specialist. Gut health may be one piece of a larger picture, but it is unlikely to be the only one.

Curious about your gut patterns? Take Gutsi's Gut Quiz to get started.

References

[1] Cryan, J. F., et al. (2019). The microbiota-gut-brain axis. Physiological Reviews, 99(4), 1877-2013.

[2] Sherwin, B. B. (2003). Estrogen and cognitive functioning in women. Endocrine Reviews, 24(2), 133-151.

[3] Baker, J. M., Al-Nakkash, L., and Herbst-Kralovetz, M. M. (2017). Estrogen-gut microbiome axis. Maturitas, 103, 45-53.

This content is for informational purposes only and does not constitute medical advice. If you have concerns about your digestive health, please speak to a healthcare professional.