Endometriosis is often described as an inflammatory condition. According to Laura, an endometriosis dietitian, it’s important to place inflammation in context. Endometriosis isn’t solely an inflammatory disorder. It’s also hormone-dependent, immune-driven and multisystem in nature. Inflammation interacts with gut function, immune regulation and hormonal balance rather than acting in isolation. For this reason, nutrition is most effective when it supports the broader physiological system rather than targeting inflammation alone.

The strongest evidence supports overall dietary patterns, particularly a Mediterranean-style approach. This pattern naturally provides anti-inflammatory nutrients, supports gut microbiome diversity and may help regulate oestrogen metabolism, all of which are relevant to endometriosis symptoms. The Mediterranean diet emphasises vegetables, fruit, wholegrains, legumes, nuts, seeds, olive oil, herbs and spices, alongside regular oily fish and moderate amounts of dairy, eggs and poultry. Research consistently associates this pattern with lower inflammatory markers, improved gut health and better symptom control in individuals with endometriosis.

What tends to be overstated are approaches that focus almost entirely on elimination. Many widely promoted “endometriosis diets” are based on small or limited studies and place heavy emphasis on restriction. In clinical practice, a significant number of individuals with endometriosis are already following restrictive eating patterns, often without clear or sustained symptom improvement. Removing entire food groups without strong clinical indication may increase the risk of nutrient inadequacy and add psychological stress around food, which can in turn complicate symptom management.

As Laura explains, the most evidence-based strategy is to focus first on what can be added to nourish and support the body, supporting nutritional adequacy, rather than defaulting to broad dietary exclusions.

Many people with endometriosis experience bloating, digestive symptoms such as constipation, diarrhoea and abdominal pain, alongside pelvic pain.

Gut symptoms are extremely common in endometriosis. The condition is strongly associated with gut and immune dysfunction, shifts in the gut microbiome, visceral hypersensitivity, and a higher likelihood of irritable bowel syndrome (IBS). The gut also plays a direct role in clearing excess oestrogen via the estrobolome. When gut function is impaired, oestrogen clearance may be less efficient, potentially contributing to symptom flares.

Rather than moving immediately to food elimination, it’s often more effective to start with the foundations of gut health. How meals are structured, how regularly someone eats, sleep quality, movement patterns and stress levels all influence digestion and gut–brain signalling, alongside the foods themselves. Regular, balanced meals, adequate overall energy intake, sufficient hydration and eating in a calm, unhurried manner can make a meaningful difference. These factors are frequently overlooked, yet they can significantly reduce bloating and digestive discomfort before specific dietary exclusions are considered.

From there, fibre quality and diversity become important. A Mediterranean-style pattern naturally increases fibre intake from a wide range of plant foods, supporting stool regularity, microbiome diversity and oestrogen metabolism. For individuals with sensitive digestion, fibre may need to be increased gradually, with greater emphasis on soluble sources and distribution across meals to minimise discomfort.

For those with diagnosed IBS, short-term, dietitian-guided approaches such as a low FODMAP protocol can be helpful. However, this isn’t intended as a first-line or long-term strategy. The objective is always structured reintroduction and rebuilding tolerance. Prolonged restriction may reduce microbiome diversity and, over time, increase gut sensitivity rather than resolve it.

Fatigue and low energy are frequently reported in endometriosis, particularly among those with heavy or prolonged periods. According to Laura, fatigue in this context is rarely just about feeling tired. It’s often driven by a combination of chronic inflammation, hormonal imbalance, heavy menstrual blood loss, gut dysfunction and under-fuelling.

Iron status is a central priority, especially for individuals experiencing significant menstrual blood loss. This involves not only including iron-rich foods in the diet, but also supporting iron absorption and ensuring levels are properly assessed through appropriate testing. In many cases, dietary intake alone may not be sufficient to restore depleted iron stores, and supplementation may be required under medical supervision.

At the same time, iron is only one part of the energy equation. Adequate and consistent dietary intakeis equally important. Skipping meals, restricting carbohydrates or relying heavily on caffeine can worsen fatigue and destabilise energy levels. The focus is placed on regular, balanced meals that combine carbohydrates, protein and healthy fats to help stabilise blood glucose levels, support hormone production and reduce energy fluctuations. Nutrients such as omega-3 fatty acids, B vitamins and magnesium also contribute to energy metabolism and menstrual health, and should be considered within an overall balanced dietary pattern.

Dairy, gluten and sugar are frequently singled out in discussions around endometriosis. Food elimination, however, is best approached as a targeted experiment rather than a default recommendation. Before removing any food, it’s important to clarify which symptoms are being addressed, whether there’s a consistent and reproducible pattern, and whether underlying gut conditions such as IBS or lactose intolerance are present.

There’s some evidence suggesting that a gluten-free diet may reduce pain in a subset of individuals with endometriosis. However, it remains unclear whether any benefit is due to gluten itself or to a reduction in fermentable carbohydrates such as fructans. At present, there’s no strong evidence to support routine dairy elimination, and some studies suggest that higher dairy intake may even be protective. Whether dairy is problematic often depends on the individual. For those who experience bloating, abdominal pain or bowel changes after consuming dairy, lactose intolerance or dairy sensitivity should be properly assessed before removing it entirely.

A personalised dietary trial may be helpful when there are clear, repeatable symptom flares linked to a specific food, with consistent improvement when intake is reduced or temporarily removed. By contrast, warning signs that elimination may not be beneficial include increasing anxiety around food, multiple foods being removed simultaneously, declining energy levels or worsening gut symptoms.

Endometriosis already places a significant physiological burden on the body. Nutrition should aim to support the body and reduce that load, rather than introduce additional stress or unnecessary restriction.

For someone newly diagnosed, the immediate priority is to reduce overwhelm. Laura emphasises that endometriosis is complex, and there is no single diet that resolves it. Attempting to follow multiple restrictive rules at once often increases stress without delivering proportional benefit.

The first practical steps are simple and foundational: eat regularly, ensure adequate overall energy intake, and gradually shift towards a Mediterranean-style pattern. This means adding more vegetables, fibre-rich carbohydrates, omega-3 fats and greater food variety, rather than concentrating on elimination. These adjustments help support gut health, stabilise blood glucose levels and reduce inflammatory load, creating a nutritional foundation that influences gut and immune function, hormones, and symptom patterns simultaneously.

These changes matter because they are sustainable and adaptable to real life. Endometriosis is a long-term condition, and nutrition strategies must be realistic enough to be maintained over time. A consistent, flexible approach will generally provide more durable symptom stability than pursuing a “perfect” diet that can’t be sustained.