I started off reading this in an attempt to grasp for some concrete sense in a world of continually changing "research shows...." and claims of fad diets and so much processed food....it had become hard to tell what was good, bad, healthy, not, etc.
A friend suggested I start with Nutrition for Dummies to build a foundation of simple, long-standing, basic nutrition information. Boy was she right.
This book has everything from the difference between mineral and nutrients, vitamin deficiencies, calorie intake, food as medicine, and much much much more. This was a great place to start my "Year of nutrition" as I learn more about how we should eat, and make small, lasting changes in our family diet. It is a handy reference book to keep around; as well as providing resources for further investigation.