@lillee -- I think this is the book @lioness mentioned. You can probably get it through your local book store also but it's available on Amazon.

Prescription for Nutritional Healing, Fifth Edition: A Practical A-to-Z Reference to Drug-Free Remedies Using Vitamins, Minerals, Herbs & Food by Phyllis A. Balch CNC
-- https://www.amazon.com/Prescription-Nutritional-Healing-Fifth-Practical/dp/1583334009