This book is Part 2 of a series titled, 'Profiles of the Nutrients', by Richard Rydon. In this second book, he considers six major Minerals and twenty-seven Trace Elements and Ultratrace Elements. In all, the series comprises three books. The first part deals with Carbohydrates, Lipids and Proteins. And the third part deals with Water-Soluble and Fat-Soluble Vitamins.