Plant-based diet intervention for women with endometriosis

A Randomized Controlled Trial of a Nutritional Intervention for Endometriosis

Not applicable Interventional Physicians Committee for Responsible Medicine · NCT05175248

This study is testing if a low-fat plant-based diet can help women with endometriosis feel better and improve their overall health compared to their usual diet.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years to 45 Years
SexFemale
SponsorPhysicians Committee for Responsible Medicine Academic / other
Locations1 site (Washington D.C., District of Columbia)
Trial IDNCT05175248 on ClinicalTrials.gov

What this trial studies

This study involves a 12-week intervention where women diagnosed with endometriosis will be randomly assigned to either a low-fat plant-based diet or their usual diet. The primary outcomes measured will include changes in pain levels, quality of life, and inflammatory biomarkers. Secondary outcomes will assess body weight, blood lipids, gut microbiome composition, and hormonal changes. The goal is to evaluate the impact of dietary changes on the symptoms and overall health of women suffering from this chronic condition.

Who should consider this trial

Good fit: Ideal candidates are women aged 18-45 with a confirmed diagnosis of endometriosis who can adhere to a plant-based diet for the duration of the study.

Not a fit: Patients with a body mass index of 40 kg/m2 or higher, or those already following a plant-based diet, may not benefit from this study.

Why it matters

Potential benefit: If successful, this intervention could provide a non-invasive dietary approach to alleviate pain and improve quality of life for women with endometriosis.

How similar studies have performed: While dietary interventions for endometriosis are not extensively studied, some evidence suggests that dietary changes can positively influence symptoms, making this approach both novel and promising.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Women with a surgical, imaging, or clinical diagnosis of endometriosis
2. Age 18-45 years
3. Stable health condition and medications for past 3 months
4. Modified Biberoglu and Behrman (B\&B) pelvic pain score of at least 5/9
5. Able to follow a plant-based diet for 12 weeks
6. Willing to be randomly assigned to either a plant-based group or a control group that will not make any dietary changes for 12 weeks

Exclusion Criteria:

1. Body mass index ≥ 40 kg/m2
2. Smoking or drug abuse during the past six months
3. Alcohol consumption of more than 2 drinks per day or the equivalent, episodic increased drinking (e.g., more than 2 drinks per day on weekends), or a history of alcohol abuse or dependency followed by any current use
4. Unstable medical or psychiatric illness
5. Already following a plant-based diet
6. Pregnant or breastfeeding, or plans of pregnancy within the study period
7. Hysterectomy or ovariectomy
8. Fibroids, ovarian cysts, pelvic inflammatory disease
9. Endocrine inflammatory conditions, such as Cushing's syndrome, Hashimoto's thyroiditis, Graves' disease, type 1 diabetes mellitus, and Addison's disease
10. Lack of English fluency
11. Unable or unwilling to participate in all components of the study
12. Evidence of an eating disorder

Where this trial is running

Washington D.C., District of Columbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Endometriosisendometriosisplant-basedveganlow-fatdietnutrition
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.