Red Sapphire

A great way, to learn new ideas about dieting. You'll find the symptoms, of excess as well as deficiency, associated with over 25 vitamins and minerals. Along with that, "the nutrition index" has recommended daily doses, of each vitamin and mineral listed. This book has those recommendations for males and females in all stages of life including geriatric, adult, adolescence, child, infancy, pregnancy, and while lactating.
It even has foods that each nutrient is found in.