Zach Bush MD — The Soil and the Body

A Reference Document — The Scientific Ground of Regenerative Physical Literacy
Written March 24, 2026 — two days before the train.

Who He Is

Zach Bush is a triple board-certified physician specialising in internal medicine,
endocrinology, and hospice care. He is an internationally recognised educator and
thought leader on the microbiome as it relates to health, disease, and food systems.
He founded Seraphic Group and the non-profit Farmer's Footprint to develop root-cause
solutions for human and ecological health.

His central argument — the one that grounds everything in this reference document — is
not complex. It is, in fact, very old knowledge expressed in the language of modern
biology:

Soil health and human health are not parallel systems. They are the same system.

The body does not exist separately from the earth it walks on, breathes, and eats. The
microbiome of the gut and the microbiome of the soil are in direct biological
conversation — and the quality of that conversation determines, at the most fundamental
level, the quality of what the body is capable of.

This is not metaphor. It is molecular biology.

The Core Framework — Four Interlocking Arguments

1. The Gut as Terrain

The gut lining is one cell layer thick — half the width of a human hair. It is held
together by structures called tight junctions. This barrier is not merely a filter. It
is the primary site of communication between the body and the living world outside it.

When the tight junctions are intact and functioning, the gut performs two operations
simultaneously: it receives what the body needs from food and the environment, and it
keeps out what would harm the interior. This is not passive filtering. It is active
discernment — the body reading what arrives and deciding, at the cellular level, what
belongs inside and what does not.

The gut is, in TCM terms, the Small Intestine — the organ of discernment. Western
molecular biology and a three-thousand-year-old Chinese medical tradition arrive at the
same description from different directions.

When the tight junctions are damaged — primarily through exposure to glyphosate, the
active ingredient in Roundup and the most widely used herbicide in industrial
agriculture — the gut becomes permeable. The body can no longer distinguish what belongs
inside from what does not. The result, over time, is systemic inflammation, immune
confusion, and the cascade of chronic conditions that Bush calls the epidemic
phenomenon of the late twentieth and early twenty-first centuries.

The gut is not just the seat of digestion. It is the body's primary intelligence
interface with the living world.

2. The Microbiome as Communication System

The microbiome — the community of bacteria, fungi, viruses, and other microorganisms
that live in and on the body — is not a passenger. It is a co-author.

More than fifty percent of the human genome has been inserted directly by viral
activity over evolutionary time. The genetic information in the body is not a closed
system inherited from two parents. It is an open system in constant dialogue with the
microbial world — receiving what Bush calls genetic upgrades from the viruses present
in soil, water, and air.

Good health, at the microbial level, is about diversity. A healthy gut microbiome
contains tens of thousands of species of bacteria and millions of species of fungi.
Industrial agriculture, processed food, and widespread antibiotic use have systematically
reduced that diversity — not just in the gut, but in the soil itself. The two
impoverishments are not separate. They are the same impoverishment at different scales.

The regenerative farm is the restoration of microbial diversity — in the soil first, and
through the soil, in the body of everyone who works it, walks it, and eats what it
produces.

3. Glyphosate — The Specific Mechanism of Disruption

Glyphosate functions as an antibiotic. It was originally patented as one. It kills
microbial diversity in the soil and water systems — and, through the food grown in that
soil and the water contaminated by its runoff, it kills microbial diversity in the gut.

The damage is not dramatic and sudden. It is cumulative and slow — the steady reduction
of the diversity that makes both soil and body resilient, adaptable, and capable of
regeneration. The body losing its microbial complexity is analogous to an ecosystem
losing its biodiversity: it continues to function, but with decreasing resilience and
increasing fragility under stress.

Gut Nisdorf is a certified organic hotel (Bio Hotel DE-ÖKO-039) — no glyphosate, no
industrial inputs, organic food throughout. Achim Ecker, who has taken ownership of
the property with the Terra Nova cooperative since early 2024, has been building
fertile soil and edible landscapes through permaculture for three decades and is
actively establishing a Terra Preta project and edible landscape at Gut Nisdorf.
Terra Preta — biochar-enriched soil — is one of the most direct practical applications
of everything Bush argues about rebuilding microbial complexity in degraded land.

The pilgrim arriving to work in this garden for three months is arriving to a place
where the soil microbiome is being actively restored. Every hour of garden work —
hands in the soil, breathing the air above it, eating the organic food the place
provides — is a direct biological encounter with that recovering complexity.

This is not wellness language. It is soil science.

4. Regeneration — The Return to Contact

The body regenerates not through performance, supplementation, or optimisation. It
regenerates through contact — restored, sustained, direct contact with the living
systems it evolved alongside.

Digging in living soil with bare hands. Breathing the air of a biodiverse landscape.
Eating food grown in the specific place where the body is working. Walking through
ecosystems that have not been chemically stripped. These are not metaphors for something
spiritual. They are the biological mechanisms of regeneration.

Bush's framework reframes what this pilgrimage is, at the molecular level: a 64-year-old
body that has been operating in urban and suburban environments — eating industrially
produced food, breathing city air, largely disconnected from living soil — arriving at
a certified organic property on the Baltic coast where the soil is being actively
restored, and spending three months restoring the conversation between its gut
microbiome and the microbiome of the earth.

Regenerating the Body You Already Have — the subtitle of this plan — is, in Bush's
terms, the restoration of what the body was designed to receive and has been largely
denied.

Connection to the Fitness Plan — Phase by Phase

Phase 1 — Touch — Lung — Hands in Soil

The first movement of the plan is sun salutations with hands in the soil. Bush's work
provides the biological mechanism behind the Indigenous teaching already at the centre
of this phase: the earth is not a surface to be used. It is a relative to be met.

The skin and the Lung are, in TCM, the same organ expressed at different depths. The
Lung opens to the outside world through the skin. Bush would add: the skin is where the
first microbial exchange begins. Physical contact with living soil introduces the soil
microbiome to the body's surface — and through breath, into the Lung itself. The
morning salutation is, at the molecular level, the body introducing itself to the place.

Phase 2 — Life / Vitality — Large Intestine — The Gut

This is the most direct anatomical connection in the plan. The Large Intestine is the
primary site of microbiome residence in the body. Bush's entire framework — tight
junctions, microbial diversity, the damage of glyphosate, the restoration of the gut
through contact with living soil — lives here.

The phase is about receiving and releasing, about the body learning what it no longer
needs to hold. Bush makes that physical: the gut lining one cell thick, the microbiome
as the body's communication infrastructure with the living world, the Large Intestine
as the organ that has been most systematically damaged by industrial food and most
capable of restoration through contact with regenerative soil.

Arriving at Gut Nisdorf and beginning to eat what the garden produces is, in Bush's
terms, a direct intervention in the health of this organ. Not a medical treatment — a
restoration of the biological relationship that industrial food disrupted.

Phase 3 — Movement — Stomach — Walking the Landscape

Walking three times per week through the Baltic landscape. Bush's observation that the
air above a biodiverse ecosystem carries a different quality and quantity of microbial
information than city air is relevant here. Every breath on a walk through the
Vorpommersche Boddenlandschaft National Park is, in his framework, a genetic
communication — the microbiome of the landscape speaking to the microbiome of the body.

The Stomach receives and begins to transform. Bush would say: what the Stomach receives
from food grown in regenerative soil, and from air breathed in a biodiverse landscape,
is categorically different from what it receives in an industrial food environment. The
transformation it is asked to perform is different in kind, not just in degree.

Phase 6 — Taste — Small Intestine — Tasting What You Have Grown

This is the primary home for Bush's work in the plan — the phase where his framework
is not background but structural.

The movement is: garden deepens — tasting what you have grown. The Small Intestine
is the organ of discernment — it receives what the Stomach has begun to transform,
and separates what the body can use from what it cannot. This is the TCM description.
Bush's description is its molecular translation: the gut lining reading what arrives
at the cellular level and making, in real time, the determination of what belongs inside
the body and what does not.

Tasting food grown in the specific soil you have worked — where the microbiome is known,
where no glyphosate has been used, where the relationship between the soil and what it
produces is intact — is, in Bush's terms, the moment the circuit closes. The body
eating from the earth it has been in conversation with for six weeks.

The Diamond stone of Phase 6 — clarity, recognition, the thing that has been forming
for years now visible — and the gut's recognition of food that genuinely belongs to it:
these are not accidentally the same phase.

The Nutrition Companion — 12_nutrition_companion_seed_pilgrims_fitness_plan_EN_v0_1.md

Bush is the primary scientific voice in the nutrition companion. The seed document
already holds the five tastes of TCM, the place-based principle, the specific landscape
of Gut Nisdorf and its Baltic surroundings. Bush provides the biological framework that
makes all of it coherent — not as alternative medicine, not as wellness claim, but as
the science of what happens when a body returns to direct contact with the living
systems it evolved alongside.

Gut Nisdorf as the Place

Gut Nisdorf is a certified organic hotel (Bio Hotel) on the Bodden coast of
Mecklenburg-Vorpommern — an ecologically renovated historic manor house run according
to rigorous organic and sustainability standards. Since early 2024 it has been owned
and operated by the Terra Nova cooperative, led by Achim Ecker and Ina Meyer-Stoll,
alongside the Terranova Begegnungsraum project — a meeting and encounter space for
intentional community work, seminars, and conscious living.

Achim Ecker is not a newcomer to this work. He has been building fertile soil and
edible landscapes through permaculture for three decades — studying with Fukuoka in
Greece, working at ZEGG for thirty years as chief landscape designer on glacial sand,
leading a reforestation project in Portugal's Alentejo since 1996, and running a Terra
Preta project since 2013. He has recently begun planting an edible landscape at Gut
Nisdorf, working the herb and vegetable garden, and developing the grounds using Terra
Preta methods.

Terra Preta — the ancient Amazonian practice of biochar-enriched soil — is precisely
the kind of soil restoration Bush's framework points toward: the deliberate rebuilding
of microbial complexity in land that has been depleted. Achim is doing this work now,
at the place the pilgrim is arriving to work.

The soil the pilgrim will put his hands in is therefore not just organically certified.
It is soil being actively enriched — its microbial complexity being rebuilt by someone
who has been doing this work for thirty years. Bush provides the scientific language
for what Achim has been practising through permaculture across three decades.

Der Boden trägt — the ground holds. Bush would add: because the ground is alive. And
because the body and the ground are, at the microbial level, made of the same
substance.

A Note on Scope

This reference document draws on the well-grounded core of Bush's work — the
soil-gut microbiome connection, the mechanism of glyphosate damage, the science of
microbial diversity, and the biological basis of regeneration through contact with
living soil. These positions are substantiated by peer-reviewed research in
microbiology, gastroenterology, and soil science, and are consistent with the broader
scientific consensus in these fields.

Bush's work also extends into areas of more active scientific debate — including
aspects of his virology framework and some of his broader claims about the pandemic
period. This reference document does not draw on those areas. What is used here is
what is directly relevant to the plan and what stands on solid scientific ground.

The same principle applies here as to the wisdom traditions in the plan: take what is
genuinely useful, hold it honestly, and do not claim more than is actually there.

License and Attribution

© 2025–2026 Michel Garand | A Pilgrim's Fitness Plan
Gut Nisdorf, Mecklenburg-Vorpommern, Baltic Coast, Germany

Licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)

You are free to share and adapt this material for any purpose, including commercially,
provided you give appropriate credit, provide a link to the license, indicate if changes
were made, and distribute any adaptations under the same license.

This document was developed with assistance from Claude (Anthropic PBC). All strategic
decisions, philosophical positions, and personal commitments are those of the author.

Contact: michel@ubec.network

A Pilgrim's Fitness Plan — Gut Nisdorf 2026
Gut Nisdorf, Mecklenburg-Vorpommern — March 2026