Should You Focus on Building Muscle or Shredding Fat?

Most people want to both shred fat and gain more muscle. Unfortunately, only newbie weightlifters or people with a lot of fat to lose can do both at the same time. Even if you belong in one of these two categories, you cannot simultaneously build muscle and shred fat efficiently. Doing both at the same time violates the basic principles of body composition: You must maintain a caloric deficit to shred fat (calories in < calories out)You must maintain a caloric surplus to build muscle (calo...