Supporting Endometriosis Through Gut Health: A Nutritional Therapy Guide

In my previous post, I explored the emerging science connecting the gut microbiome to endometriosis. Here, I want to turn that science into something practical and helpful because for those living with this condition, actionable support matters. Knowledge without direction can feel like yet another dead end, and I would like to offer more than that.

The research is clear that gut dysbiosis - an imbalance in the gut microbiome - is consistently found in women with endometriosis. This dysbiosis disrupts the estrobolome, the community of gut bacteria responsible for metabolising and regulating oestrogen, which can drive elevated circulating oestrogen levels and fuel the growth of endometriotic lesions. Gut imbalance also promotes chronic inflammation and compromises the body's own anti-inflammatory defences. In short: what happens in the gut does not stay in the gut.

These are not abstract findings. They point directly to areas where targeted nutritional support can make a genuine difference.

What You Can Do Right Now: Nutritional Therapy for Gut Health and Endometriosis

What I share here comes from both professional training and lived proximity to this condition. I have spent years alongside someone navigating it without adequate support, and that experience has profoundly informed the way I approach this work with clients. These are not abstract recommendations drawn from textbooks — they reflect what I have come to understand, through science and through life, about how the body can be genuinely supported.

These approaches do not replace your medical care - please see the disclaimer below - but they can make a meaningful difference to how you feel day to day.

1. Adopt an Anti-Inflammatory Dietary Foundation

Chronic inflammation is central to endometriosis. An anti-inflammatory diet provides the building blocks for a calmer internal environment. Focus on:

- Omega-3 rich foods: oily fish (salmon, mackerel, sardines), walnuts, flaxseeds, hemp seeds

- Colourful vegetables and fruits: particularly leafy greens, berries, broccoli, and beetroot — all rich in antioxidants and polyphenols

- Olive oil as your primary cooking fat

- Reduced red meat and processed foods, which promote inflammation and may worsen gut dysbiosis

2. Support Your Estrobolome with Fibre and Fermented Foods

A fibre-rich diet feeds the beneficial bacteria responsible for healthy oestrogen metabolism. Aim for a wide variety of plant-based fibre sources — vegetables, legumes, wholegrains, fruits, nuts, and seeds. Diversity is key: try to eat 30 different plant foods per week as a practical target.

Fermented foods introduce beneficial bacteria and support microbiome diversity. Include small, regular portions of live yoghurt (unsweetened), kefir, sauerkraut, kimchi, and miso in your diet.

3. Consider Targeted Probiotic and Prebiotic Support

Research points to specific bacterial deficits in endometriosis. A qualified nutritional therapist can help you identify appropriate probiotic strains and prebiotic fibres (such as inulin and fructooligosaccharides) that may help to address your individual microbiome imbalances. Supplementation should always be tailored rather than generic.

4. Identify and Reduce Dietary Triggers

Certain foods consistently worsen gut dysbiosis and systemic inflammation:

- Ultra-processed foods and refined sugars, which feed pathogenic bacteria and promote LPS production

- Alcohol, which is both pro-inflammatory and disruptive to the gut lining

- Gluten and dairy, which some women with endometriosis find exacerbate their symptoms — an elimination and reintroduction protocol, guided by a practitioner, can help identify individual sensitivities

- Excessive caffeine, which may worsen oestrogen metabolism and disrupt sleep

5. Prioritise Gut Lining Integrity

A compromised gut lining allows bacterial endotoxins — including LPS from Gram-negative bacteria — to enter the bloodstream and trigger systemic inflammation. Nutrients that support gut lining integrity include L-glutamine, zinc, vitamin D, and omega-3 fatty acids. These are best taken within a personalised, practitioner-supervised plan.

You Deserve Support — and You Are Not Alone

If you have spent years being told your pain is normal, being dismissed by the very people who should have helped you, or managing a complex condition largely on your own - please know that your experience is valid, your pain is real, and you deserve so much better.

I know something of what it means to sit beside a person you love and feel helpless. To watch years pass without answers. To witness the toll that dismissal, trial-and-error prescribing, and the absence of a clear plan takes - not just on the body, but on a person's sense of themselves. That experience did at times leave me feeling totally helpless. But it drove me to understand this condition as deeply as I can, and to offer the kind of support I wish had been available sooner.

The research emerging around gut health and endometriosis is not a cure, and I want to be clear about that. But it does open genuinely meaningful avenues for support - and it reinforces what nutritional therapists have long understood: that food, the gut, hormones, and inflammation are deeply, inseparably connected.

At Jayne Higgins Nutrition, I work with women navigating exactly this kind of complex, chronic condition. This is not simply a specialism I have chosen - it is work I feel compelled to do. If you would like to explore a personalised nutritional therapy plan as part of your broader management of endometriosis, I would be glad to work with you. You can find out more about working with me [on the services page].

Disclaimer: Nutritional therapy is a complementary approach and is not a replacement for medical diagnosis, treatment, or the care of your GP, gynaecologist, or other healthcare professionals. If you are experiencing symptoms of endometriosis, please seek medical advice. The information in this article is intended for educational purposes only and does not constitute medical advice.

Sources and further reading:

- Pérez-Prieto et al., BMC Medicine (2024) — Gut microbiome signatures in endometriosis

- Wang et al. (2025) — Firmicutes/Bacteroidetes ratio in endometriosis

- Hearn-Yeates et al., Reproduction & Fertility (2024) — Gut-brain axis and endometriosis

- Huang et al. (2021) — Ruminococcus as a diagnostic biomarker

- Frontiers in Cellular and Infection Microbiology (2025) — Fusobacterium, LPS and immune microenvironment