Scientific Foundation
Evidence Base
The EDES tool family is grounded in decades of peer-reviewed research spanning endocrinology, reproductive toxicology, developmental biology, and environmental health. This page provides an overview of the evidence approach and a curated reference library of the most influential documents in the field.
Research Highlights
The Facts
Two landmark studies demonstrate that EDC exposure is universal — and that simple, practical interventions can produce measurable biological change.
100% of participants excreted at least 6 plastic-associated chemicals in their urine
— on any given day. Every single individual in a cohort of 211 healthy Australian adults showed measurable urinary levels of multiple phthalates and bisphenols.
Cohort of 211 healthy adults · Repeated-day urine sampling
A 7-day low-plastic diet reduced urinary BPA by 59.7%
With significant reductions across multiple phthalate metabolites — through simple dietary changes over just one week.
BPA (Bisphenol A)
MBzP (Phthalate)
MnBP (Phthalate)
Percentage of baseline levels remaining after 7-day intervention
PERTH Trial — Harray AJ et al. “Plastic-associated chemical exposure and health effects in a community-dwelling Australian adult cohort.” Nature Medicine, Vol. 32, May 2026.
Conventional everyday personal care products activated 26 cancer-associated genes in healthy breast cells
Pro-cancerous gene expression was identified across the PI3K-AKT, mTOR, and apoptosis pathways — in healthy tissue, not cancer patients.
PI3K-AKT
genes affected
mTOR
genes affected
Apoptosis
genes affected
26 differentially expressed genes across key cancer pathways
28 days of non-toxic personal care products reversed 73% of cancer-associated gene shifts
Switching to paraben- and phthalate-free products for just four weeks normalised the majority of pro-cancerous gene expression profiles.
19 of 26 cancer-associated genes returned toward normal expression
REDUXE Study — Dairkee SH et al. “Reduction of breast cancer risk associated with the use of non-toxic personal care products.” Chemosphere, Vol. 322, 2023. doi:10.1016/j.chemosphere.2023.138014
What the Science Shows
Endocrine-disrupting chemicals (EDCs) are exogenous substances that interfere with hormonal regulation at every life stage — from foetal development to late adulthood. Over the past three decades, a large body of evidence has established that ubiquitous exposure to these chemicals is linked to rising rates of reproductive disorders, metabolic disease, neurodevelopmental impairment, thyroid dysfunction, and hormone-sensitive cancers.
Major institutional reviews — including the Endocrine Society’s two Scientific Statements, the WHO/UNEP State of the Science reports, and the 2024 Endocrine Society–IPEN Joint Report — converge on a consistent message: current levels of human exposure to EDCs are a significant public health concern, and clinical awareness remains critically low.
How the EDES Tools Use Evidence
EDES screening domains and flag levels are informed by a pragmatic synthesis of:
- Systematic reviews and meta-analyses
- Prospective cohort studies with exposure–outcome data
- Expert body assessments (WHO, UNEP, Endocrine Society, FIGO, AAP, ACOG)
- Regulatory agency risk assessments
- Established toxicological frameworks for endocrine disruption
EDES does not apply a formal evidence-grading system (such as GRADE). Flag levels reflect a pragmatic synthesis of evidence quality, consistency, and clinical relevance — supporting practical decision-making rather than making formal causal claims.
Reference Library
We have compiled a curated reference library of the most important scientific documents in endocrine disruption. This downloadable PDF includes:
Institutional Statements
Endocrine Society, WHO/UNEP, OECD, EU Commission
Economic Impact Studies
Trasande et al. — US and EU disease burden analyses
Reproductive & Fertility
Sperm count meta-analyses, fertility outcomes, phthalate research
Developmental & Paediatric
Neurodevelopment, pubertal timing, prenatal exposure
Metabolic & Thyroid
Obesogens, diabetes, thyroid disruption, BPA reviews
Exposure & Mechanisms
Biomonitoring, chemical classes, key characteristics framework
Clinical Practice
FIGO, AAP, ACOG guidelines for clinical translation
Download the EDES Reference Library
A free, curated collection of 40+ key references across 8 categories — including landmark meta-analyses, Endocrine Society Scientific Statements, WHO/UNEP reports, and clinical practice guidelines.
Version 1.0 — June 2026 · CC BY-NC 4.0
Go Deeper with Endocrine Resilience
EDES-Protocol.org provides the clinical screening tools. For comprehensive education, detailed documentation, and practical implementation resources, visit Endocrine Resilience — the extended clinical and educational platform behind the EDES tools.
Free Clinical Documentation
Access an extensive library of free clinical articles, evidence summaries, and introductory documentation on EDC science — suitable for clinicians, researchers, and public health professionals looking to build foundational knowledge.
Clinical Education Package
A structured, in-depth educational programme covering the science of endocrine disruption in clinical depth. Designed for healthcare professionals who want to integrate EDC awareness into their practice with confidence and competence.
The Whole-House System
A practical, room-by-room guide to reducing EDC exposure in everyday life. Evidence-informed steps covering food, personal care, cleaning, water, and living spaces — ideal for translating EDES screening results into actionable patient recommendations.
Endocrine Resilience is the educational and implementation platform that supports the EDES clinical tools.
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