Metabolic Surge: How to Build Muscle and Lose Fat Fast is for anyone looking to lose a lot of fat quickly while maintaining and even GAINING muscle. It's an extraordinarily powerful, highly-targeted, intense program of diet and exercise designed to accomplish two things: 1.) Strip away body fat as quickly as possible. 2.) Retain and build muscle mass. This unique and groundbreaking fat-loss program uses your own body fat to provide energy for building muscle, practically doubling the speed of fat loss. Every part of the program builds on the next to make the whole program far greater than the sum of the parts.