THE THIRD EDITION. You just left the doctor and he told you to watch your salt. What does that mean? This book will walk you through what salt is, where it is, and why it's important to us. You will learn about hidden salt. Other names that are used for salt in food. And how to lower your intake of salt through simple techniques. You will learn what salt does in your body , and how too much salt troubles your body. You will find this a fun and informative read.