Industrialised gut microbiomes disrupt hormonal recycling: systemic risks of endocrine disruption in modern societies

Indigenous knowledge systems universally frame gut health as a reflection of ecological balance, where microbial diversity is sustained by traditional diets and land stewardship. Practices like seed saving, rotational farming, and avoidance of synthetic chemicals preserve microbial ecosystems that industrial societies are now disrupting. The loss of these practices is not just a biological issue but a cultural and spiritual one, as seen in the erosion of food sovereignty among Indigenous peoples globally.

The current crisis mirrors historical patterns of endocrine disruption, such as the 20th-century introduction of synthetic estrogens in agriculture and medicine, which led to unforeseen health crises like DES exposure in the 1970s. The thalidomide scandal and DDT’s role in thinning eggshells serve as cautionary tales about the unintended consequences of unregulated chemical innovation. Regulatory frameworks have repeatedly lagged behind industrial practices, prioritising short-term profits over long-term public health.

Cross-culturally, hormonal balance is often tied to diet and environment; for instance, the Mediterranean diet’s emphasis on whole foods and olive oil is linked to lower rates of estrogen-related cancers compared to Western diets. In Japan, traditional fermented foods like miso and natto are associated with gut microbial diversity, contrasting with the processed-food-heavy diets of industrialised nations. These patterns suggest that industrialisation’s disruption of gut microbiomes is not universal but tied to specific cultural and economic transitions.

Scientific evidence confirms that industrialised diets high in processed foods and low in fiber reduce microbial diversity, while antibiotics and endocrine-disrupting chemicals (e.g., BPA, phthalates) alter gut and hormonal ecosystems. Studies show that gut bacteria like *Eggerthella lenta* can metabolise estrogens, but the long-term health impacts of this process—such as increased cancer risk or reproductive disorders—remain understudied. The scientific community’s focus on individual risk factors rather than systemic chemical exposure limits the scope of research.

Artistic and spiritual traditions often depict the body as a microcosm of the earth, where hormonal balance reflects ecological harmony. In alchemical traditions, the gut is seen as the 'second brain,' where digestion and emotion intertwine, mirroring modern anxieties about alienation from nature. Contemporary eco-artists like Agnes Denes highlight the body’s vulnerability to industrial toxins, framing endocrine disruption as a crisis of disconnection from the living world.

Future scenarios must account for the compounding effects of climate change—such as heat stress and altered food systems—on gut health and hormonal regulation. Modelling suggests that without regulatory intervention, endocrine disruption could lead to generational declines in fertility and increases in hormone-sensitive cancers. Scenario planning must also consider the potential of deindustrialised food systems, such as agroecology, to restore microbial diversity and reduce chemical exposure.

Marginalised communities, particularly Black, Indigenous, and low-income populations, face disproportionate exposure to endocrine-disrupting chemicals due to redlining, industrial zoning, and lack of healthcare access. Women of colour are more likely to work in industries with high chemical exposure, yet their health outcomes are often excluded from mainstream research. Grassroots movements like the Environmental Justice League are documenting these disparities, but their insights are rarely integrated into policy or scientific discourse.