Start with high-confidence diet & nutrition books, then narrow by subgenre or adjacent topics.
Super Gut
William Davis M.D.
Food Fix Uncensored
Dr. Mark Hyman MD, Brianna Bella-Hyman
How Not to Die
Michael Greger M.D. FACLM, Gene Stone
How Not to Diet
Michael Greger M.D. FACLM, Michael Greger
The 150 Healthiest Foods on Earth, Revised Edition
Jonny Bowden
Eat, and Love Yourself
Sweeney Boo, Lilian Klepakowsky