Most parasite books tell you how to kill the invader. This one asks a better question: why did your body let them settle in the first place?
Sunlight, minerals, and circadian rhythm. The three things nobody connects to parasites, and the reason your cleanses never stuck.

By Pam Killeen, co-author of the New York Times bestseller The Great Bird Flu Hoax
Dr. Joseph Mercola
scientific references
in four parts
336 pages
Parasites & the Terrain asks the question those books skip: why did parasites move in to begin with?
Drawing on nearly forty years in natural health, Pam Killeen argues that parasites rarely arrive alone. They travel with candida, bacterial imbalance, and chronic infection, all thriving in the same weakened terrain: one disrupted by poor sleep, artificial light, mineral deficiencies, processed foods, chronic stress, sluggish drainage, and modern environmental burdens.
Instead of chasing endless cleanses, this book offers a terrain-first framework for restoring resilience through minerals, circadian rhythm, sunlight, breathwork, ancestral nutrition, and strategic detoxification.
Fix the terrain, and you stop being a good host.
You may see parts of your own story here.
Your lab results come back “normal,” but your days don’t feel normal.
Your energy tanks after eating, and you can’t work out why.
Your digestion feels stuck, or you wake at the same hour every night.
You’ve tried cleanses before, and the symptoms keep coming back.
You suspect your gut is tied to your mood, sleep, and energy.
You’ve been told you’re fine, and you know you’re not.
This book was written for you.
Most parasite books focus on killing the invader. Parasites & the Terrain asks a more important question: Why do parasites take hold in the first place?
Drawing on nearly forty years in natural health, coach and nutritional consultant Pam Killeen argues that parasites rarely arrive alone. They travel with candida, bacterial imbalance, and chronic infection, all thriving in the same weakened terrain — one disrupted by poor sleep, artificial light, mineral deficiencies, processed foods, chronic stress, sluggish drainage, and modern environmental burdens. Instead of chasing endless cleanses, she offers a comprehensive, terrain-first framework for restoring resilience through minerals, circadian rhythm, sunlight, breathwork, ancestral nutrition, and strategic detoxification.
Featuring a foreword by Dr. Joseph Mercola, whose New York Times bestseller The Great Bird Flu Hoax Pam co-authored, this research-backed guide answers the question Dr. Hulda Clark asked decades ago: what happens when we clean up the internal terrain and reduce parasitic burden at the same time? Inside, you’ll find practical protocols, the four-phase Open, Kill, Bind, Rebuild sequence, and more than 240 scientific references to help readers strengthen digestion, energy, natural resistance, and long-term wellness.
Perfect for readers of Dr. Tom Cowan, Dr. Andrew Kaufman, Weston A. Price, Sally Fallon, Dr. Jack Kruse, Satchin Panda, and Morley Robbins (Cure Your Fatigue), and for followers of terrain theory, circadian health, mineral balancing, and gut restoration protocols, this thought-provoking natural health book offers a fresh perspective on parasites, chronic symptoms, and the body’s remarkable capacity to heal when the terrain is restored.
For anyone seeking answers beyond conventional parasite cleanses, Parasites & the Terrain provides a practical roadmap to building a body that is stronger, more resilient, and harder for chronic illness to take hold in.
From the Introduction to Parasites & the Terrain
Sequence is everything. Most cleanses fail because they skip straight to killing, before the body has anywhere to put what gets released. Chapter 11 lays out the fuller sequence.
Clear the drainage pathways first. Bile, bowels, lymph, and kidneys need to be moving before anything gets mobilized.
Targeted firepower, not friendly fire. Pulsed antimicrobials and biofilm disruption, applied once the exits are open.
Escort the debris out. Binders and timing, so what gets released actually leaves rather than recirculating.
Restore what was lost. Minerals, bile flow, gut lining, and the rhythms that keep the terrain hostile to reinfection.
Other books tell you how to kill parasites. This one explains why your body invited them in, and how to make sure they can’t come back.
Sunlight, minerals, and circadian rhythm. You won’t find this combination in any competing book, and it’s the reason the results hold.
Casual and down to earth, even if you’ve never heard of ceruloplasmin or copper bioavailability. You will by the end.
More than 240 endnotes from peer-reviewed science, named and checkable. Every claim can be traced.
Castor oil packs, coffee enemas, liver flushes, biofilm disruptors. Approaches backed by both history and modern research.
Brain fog, anxiety, and mood swings, explained through the parasite–gut–brain triangle, with something to actually do about it.
The book builds in order, from why parasites thrive now, to a full strategy for restoring the terrain they depend on.
Light, minerals, and the body’s inner order. Why parasites are thriving today, what history suggests about their link to cancer, and the roles copper, sunlight, cortisol, and breath play in your defenses.
Signals, sugar, and water. How electromagnetic exposure, blood sugar swings, and the water you drink quietly erode your natural resistance.
Patterns, sequence, and the art of drainage. Why standard testing misses so much, and the four-phase sequence that replaces the old three-step cleanse.
Rewiring the terrain. Mineral balancing, vitamin D, ancestral nutrition, aging, the surprising science of nicotine, and clearing the toxic load.
One of the most widely read natural health physicians in the world wrote the foreword to this book. That isn’t a courtesy. It’s a signal about the quality of the research and the importance of the message.
Dr. Mercola’s New York Times bestseller The Great Bird Flu Hoax was co-authored with Pam Killeen.
This book was written for readers of
and for anyone following terrain theory, circadian health, mineral balancing, or gut restoration.

“It’s the book I wish had existed when I first started asking the hard questions.”
— Pam Killeen
Pam Killeen is a health coach, nutritional consultant, and podcaster whose work examines the intersections of health, food, and media. she write about circadian health, minerals, and terrain, and she is the creator of two podcasts, Circadian Reboot and Truth Over Spin.
She has spent nearly twenty years as a regular guest and co-host on North American talk radio, including CJBK 1290 AM, CKTB 610 AM, Coast to Coast AM, and The Richard Syrett Show on Sauga 960 AM.
A working health coach specializing in mineral balancing and circadian rhythm restoration, Pam draws on nearly forty years in the natural health field, beginning with her own recovery from chronic fatigue and fibromyalgia. She lives in London, Ontario.
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Occasional notes on circadian health, minerals, and terrain. Nothing else, and the worksheets are free either way.
Hardcover · 336 pages · Skyhorse Publishing · On sale January 19, 2027
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