1. Metal Ions and Infectious Diseases. An Overview from the Clinic by Peggy L. Carver
2. Sodium and Potassium in Health and Disease by Hana R. Pohl, John Wheeler, and H. Edward Murray
3. Magnesium in Health and Disease by Andrea M. P. Romani
4. Calcium in Health and Disease by Marisa Brini, Denis Ottolini, Tito Calì, and Ernesto Carafoli
5. Vanadium. Its Role for Humans by Dieter Rehder
6. Chromium: Is It Essential, Pharmacologically Relevant or Toxic? by John B. Vincent
7. Manganese in Health and Disease by Daiana Silva Avila, Robson Luiz Puntel, and Michael Aschner
8. Iron: Effect of Deficiency and Overload by Robert C. Hider and Xiaole Kong
9. Cobalt: Its Role in Health and Disease by Kazuhiro Yamada
10. Nickel and Human Health by Barbara Zambelli and Stefano Ciurli
11. Copper: Effects of Deficiency and Overload by Ivo Scheiber, Ralf Dringen, and Julian F. B. Mercer
12. Zinc and Human Disease by Wolfgang Maret
13. Molybdenum in Human Health and Disease by Guenter Schwarz and Abdel A. Belaidi
14. Silicon: The Health Benefits of a Metalloid by Keith R. Martin
15. Arsenic. Can this Toxic Metalloid Sustain Life? by Dean E. Wilcox
16. Selenium. Role of the Essential Metalloid in Health by Suguru Kurokawa and Marla J. Berry