That has scientific studies to back the claims on?
Eat, Drink, and Be Healthy is well researched and is currently the most scientifically accurate book rated by the folks at Red Pen Reviews.
https://www.redpenreviews.org/reviews/eat-drink-and-be-healthy/
Also high on their list is The Good Gut: https://www.redpenreviews.org/reviews/the-good-gut-taking-control-of-your-weight-your-mood-and-your-long-term-health/