Some books have not aged well, or the authors have more recently lost the plot. I'll leave them here, hoping that they stand the test of time..

The Bibles:

The Mucusless Diet Healing System: Arnold Ehret

Vibrant Health: Norman Walker

Dr Jensen’s Guide To Better Bowel Care: Bernard Jensen

The Tao Of Detox: Daniel Reid

Your Healthy Journey: Fred Bisci

Theta Healing: Vianna Stibal

Detox Books:

Fasting Path: Stephen Buhner

The Miracle of Fasting: Paul Bragg

The Green Foods Bible: David Sandoval

The Amazing Liver & Gallbladder Flush: Andreas Moritz

Gerson Therapy: Charlotte Gerson (cancer therapy)

The Golden Fountain: Coen van der Kroon

Cellular Awakening: Barbara Wren (not all accurate, but some interesting info)

Food Books:

The Slow Down Diet: Marc David

Gut Reaction: Gudrun Jonsson

Milk - The Deadly Poison: Robert Cohen

Recipes To Nurture: Aine Macateer

Fast Food Nation: Eric Schlosser

Diet For A New America: John Robbins

Healing Books:

Breaking The Death Habit: Leonard Orr

Anatomy Of The Spirit: Caroline Myss

12 Stages of Healing: Donald Epstein

Permanent Healing: Dr Daniel Condron

Interesting:

Gut: Giulia Enders

Last Hours Of Ancient Sunlight: Thom Hartmann

Mad Cowboy: Howard Lyman

The Power of Timing: Johanna Paungger and Thomas Poppe

The Book of Secrets: Deepak Chopra

A New Earth: Eckhart Tolle

The Multiorgasmic Couple: Mantak Chia

The Tao of Sexology: Dr Stephen Chang

Jivamukti Yoga: Sharon Gannon + David Life

Long Life, Honey in The Heart: Martin Prechtel

The God Code: Gregg Braden

The Gift: Hafiz