It's About the Energy with Dr. Natalie Kather, author of The Metabolic Makeover.

This book describes a clinically proven program which is already helped thousands of readers improve their metabolism and gain better energy and better quality of life. Everybody wants more energy but very few people know how to have real energy. People should know by now that so-called energy drinks, pills, patches do not provide real energy. The active ingredient in those products is caffeine, which stimulates the nervous system, creating the illusion of energy. If a person wants real energy, then they have to make it in their cells by improving their metabolic efficiency.