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When you live with endometriosis, it is natural to look for anything that might help, and food is one of the first things many women ask about. You may have seen claims online that the right diet can "heal" or "cure" endometriosis. So what does the evidence really say? This guide explains honestly what nutrition can and cannot do, which food choices are reasonable to try, and how to look after your health without falling for false promises.

The short answer

Diet cannot cure or treat endometriosis itself. Endometriosis is a long-term condition that needs medical care, such as pain relief, hormonal treatment, or surgery. However, some research suggests that what you eat may influence inflammation and symptoms such as pain for some women. A healthy, balanced diet is a sensible part of looking after yourself, but it should work alongside medical treatment, not replace it.

What does the research say?

• Endometriosis is a chronic, oestrogen-dependent, inflammatory condition that affects around 1 in 10 women of reproductive age.
• Reviews of the research agree that most studies on diet and endometriosis are observational (they look at patterns, but cannot prove cause and effect), and that large, well-designed randomised trials are still lacking.
• Some studies suggest that women with endometriosis tend to eat fewer vegetables and omega-3 fats, and more red meat and trans fats. These findings have not always been consistent.
• As a result, there is no official, proven "endometriosis diet".

Because the evidence is limited, you should be cautious about anyone selling a strict diet plan, a supplement, or a book that promises to cure the condition.

Foods and nutrients that may help

The following ideas fit with a healthy, anti-inflammatory style of eating, such as a Mediterranean-style diet. They are reasonable to try because they are good for your general health too, but they are not proven to treat endometriosis.

1. Omega-3 fats

Omega-3 fats have anti-inflammatory properties, and some studies suggest that higher intake may be linked with less pain or a lower risk of endometriosis. The evidence for supplements is mixed. Good food sources include oily fish (such as salmon, sardines, mackerel, and trout), walnuts, flaxseeds, and chia seeds. Tell your doctor if you plan to take fish oil supplements, especially if you take blood-thinning medicines.

2. Plenty of fruit and vegetables

Colourful fruit and vegetables supply fibre, vitamins, and antioxidants. Aim for a variety of colours each day, including leafy greens, berries, citrus fruit, and peppers.

3. Fibre-rich foods

Wholegrains, beans, lentils, vegetables, fruit, nuts, and seeds support your digestion and gut health. A high-fibre diet is also thought to help the body to remove extra oestrogen. Increase fibre gradually and drink enough water, to avoid bloating.

4. Less red and processed meat

Some studies link a high intake of red meat, especially processed meat such as sausages and bacon, with a higher risk of endometriosis, and it may increase inflammation. Reducing it is good for general health too. If you have heavy periods, make sure that you still get enough iron, from sources such as lentils, beans, fish, and poultry (see our article on anemia).

5. Healthy fats

Choose olive oil, avocado, nuts, and seeds more often than fried foods and commercially baked products that contain trans fats.

6. Vitamin D and calcium

Some research suggests a possible link between vitamin D and endometriosis, but this is not proven. Ask your doctor about your vitamin D level before taking a supplement.

Popular diets with little or no proof

• Gluten-free diet: some women feel better on it, but a recent review concluded that there is not enough evidence to recommend a gluten-free diet for endometriosis.
• Dairy-free diet: there is no strong evidence that dairy worsens endometriosis, and cutting out dairy can lower your calcium intake.
• Low-FODMAP diet: this can help bowel symptoms such as bloating, diarrhoea, and constipation, especially if you also have irritable bowel syndrome. It is not a treatment for endometriosis, and it should be done with a dietitian.
• "Detox" diets, juice cleanses, and very restrictive plans: there is no evidence that they help, and they can cause nutrient deficiencies.

If you are considering cutting out a whole food group, speak to a doctor or a registered dietitian first, so that you do not lose important nutrients.

Alcohol and caffeine

Some studies link alcohol and high caffeine intake to a higher risk of endometriosis, but the results are mixed. If you notice that alcohol or coffee makes your symptoms worse, it is reasonable to cut back. You do not need to feel guilty about it either way.

A simple day of eating

• Breakfast: oats with berries, ground flaxseed, and walnuts.
• Lunch: a lentil and vegetable soup with wholegrain bread, and a side salad with olive oil.
• Snack: an apple or a pear with a handful of almonds, or plain yoghurt with fruit.
• Dinner: grilled salmon or sardines with brown rice and steamed greens.
• Drinks: plenty of water, and herbal teas such as ginger or peppermint if you enjoy them.

How to try changes safely

• Change one thing at a time, and give it a few weeks, so that you can see what helps.
• Keep a food and symptom diary for a few months. It helps you and your doctor to spot patterns.
• Do not stop your medicines or delay medical care because you are trying a diet.
• Avoid extreme rules. A diet that makes you anxious about food, or that leaves you hungry and tired, does not help your health.
• Be careful with supplements, and ask a doctor or pharmacist before taking them, particularly if you are trying to get pregnant or you take other medicines.

If you have ever had difficulties with eating or body image, tell your doctor before making major diet changes, because strict food rules can sometimes make this worse.

What else can help?

Alongside healthy eating, women with endometriosis often find the following useful:

• Pain relief and hormonal treatments prescribed by their doctor
• Heat packs and gentle exercise
• Good sleep and stress management
• Pelvic floor physiotherapy
• Counselling or a support group

When to see a doctor

• You have severe period pain, pelvic pain, or pain during sex
• Your symptoms are getting worse, or painkillers are not helping
• You are trying to get pregnant and you suspect endometriosis
• You are losing weight without trying, or you are worried about your eating

Get urgent medical help for sudden, severe tummy pain, fainting, or very heavy bleeding.

Frequently asked questions

Can food cure endometriosis?

No. No food, supplement, or diet has been proven to cure endometriosis.

Is there an "endometriosis diet"?

There is no single proven diet. Most experts suggest a balanced, anti-inflammatory, Mediterranean-style way of eating.

Should I stop eating gluten or dairy?

Not without a clear reason. There is not enough evidence that they help in endometriosis, and cutting them out can reduce your nutrient intake.

Do omega-3 supplements work?

The evidence is mixed. Eating oily fish a couple of times a week is a good way to get omega-3 fats. Ask your doctor before starting a supplement.

Can a healthy diet improve fertility with endometriosis?

A healthy diet supports your general and reproductive health, but it does not treat the endometriosis. If you are having difficulty conceiving, talk to your doctor early.

Sources and further reading

• Endometriosis Australia, Is there a universal diet for endometriosis?
• Kuczma M., Diet and endometriosis: a comprehensive review of current evidence (Quality in Sport)
• NHS, Endometriosis

This article is for general education and does not replace advice from your doctor or a registered dietitian. If you have endometriosis, please follow the treatment plan agreed with your healthcare professional. See our Disclaimer.

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