Start with high-confidence detox & cleansing books, then narrow by subgenre or adjacent topics.
The Blood Sugar Solution 10-day Detox Diet
Dr. Mark Hyman MD, Mark Hyman
TOX-SICK
Suzanne Somers
The Inflammation Spectrum
Dr. Will Cole, Eve Adamson
Breathing for Warriors
Dr. Belisa Vranich, Brian Sabin
The Liver and Gallbladder Miracle Cleanse
Andreas Moritz
Natural Homemade Skin Care
Militza Maury