> Research summary—not medical advice. This page synthesizes published research on a mechanism-level intervention. It is not a clinical recommendation.
Consult a qualified healthcare provider before making any changes to diet, supplementation, or treatment.
Intervention Summary#
Reduction of red meat intake to lower heme iron delivery to the gut lumen and reduce arachidonic acid-driven prostaglandin synthesis.
Red meat is a triple contributor to the endometriosis signature: it provides heme iron (feeding siderophore-producing pathogens), arachidonic acid (fueling COX-2-mediated inflammation), and is associated with higher estrogen levels via fat content and bioaccumulated endocrine disruptors.
Evidence#
Prospective cohort (Nurses' Health Study II): Women consuming >2 servings/day of red meat had 56% increased risk of laparoscopically confirmed endometriosis compared to <1 serving/week.
Substitution analysis: Replacing one serving of red meat with fish associated with reduced endometriosis risk.
Heme iron: Red meat is the primary dietary source of highly bioavailable heme iron, which is absorbed independently of iron-regulatory mechanisms and can drive luminal iron excess.
Arachidonic acid: Red meat provides preformed arachidonic acid directly to COX-2 for prostaglandin E2 and thromboxane synthesis.
Mechanism#
Heme iron as selective pressure: Heme iron feeds iron-dependent pathogens (E. coli, Enterobacteriaceae) enriched in endometriosis, fueling siderophore production and virulence factor expression (Primitive 1).
Prostaglandin cascade: Arachidonic acid from red meat is converted by COX-2 to PGE2, which promotes angiogenesis, immune evasion, and growth of endometrial implants. Estrogen burden: Animal fat in red meat carries bioaccumulated xenoestrogens; adiposity from high red meat diets increases peripheral aromatase activity (Primitive 7).
Microbiome shift: High red meat intake increases Bilophila and sulfate-reducing bacteria via taurine-conjugated bile acid metabolism.
Clinical Context#
Replacing red meat with fish (omega-3 source), poultry, or plant protein is preferred over simple elimination. This reduces both heme iron and arachidonic acid while maintaining protein adequacy. The intervention aligns with broader anti-inflammatory dietary patterns.
Practitioners should distinguish between reducing red meat (well-supported) and eliminating all animal protein (not supported by current evidence for endometriosis).
> Educational content, not medical advice. This page describes mechanisms by which the intervention interacts with the microbiome and metal ecology. It is not a treatment recommendation.
Clinical decisions about any intervention should be made with a qualified healthcare practitioner who knows your individual history.
Article network
Mentioned here 1
Pages linking here 1
Connect the evidence
Publicly readable discussion by ORCID-authenticated researchers. Questions, interpretation, methods, corrections, and new evidence stay attached to this record.
No discussion yet. Start with a precise question or a source-backed observation.
Activity and accepted changes
Accepted researcher context, editorial status, public discussion, and upstream Git revisions are shown together. Pending, declined, and withdrawn proposals remain private.
- published revision
massive wiki expansion: 149 stubs fixed, 100+ new pages, Rule 15 scan, keystone papers
WikiBiome Deploy Bot · +11 −11
Inspect exact Git diff ↗ - published revision
Adversarial audit fixes: confidence downgrades, disclaimers, STOP safety, entity cleanup
WikiBiome Deploy Bot · +7 −0
Inspect exact Git diff ↗ - published revision
Health check fixes: 40 intervention pages + 14 entity Connections sections
WikiBiome Deploy Bot · +54 −0
Inspect exact Git diff ↗