Please note that you are acquiring a summary of the book. All the author's key ideas are presented in sammari format, which you can read in 30-40 minutes without missing anything important. The summary is prepared for your convenience by the authors of the online library of Sokratko. Ruth Ann Carpenter is a nutritionist who developed the Lifestyle Nutrition Study. It formed the basis of the HEAD program. Her colleague Carrie I. Finley studied nutrition and epidemiology at several universities in Texas and also participated in the organization of the Lifestyle Nutrition Study. This book is suitable for those who want to lead a healthy lifestyle, but do not know where to start. Also, this book will be of interest to everyone who is interested in issues of proper nutrition.