Originally Posted by
rpenmanparker
I have to disagree. The more muscle you build, the more weight you CAN lose. Muscle is where the calories are burned, so weight work in the gym will pay big benefits in weight loss. Yes muscle is heavier than fat, but it doesn't have to put weight on you in the long run. Now if you are slim and are adding muscle, yes you will be adding weight. Who care about that anyway. It's not problem. But if you are exchanging fat for muscle, you will likely lose weight due to the amount of fat lost when a little muscle starts to do its magic.
To loose any significant weight you need to run caloric deficit. Can't build muscles on those. Now you might add some muscle mass, but not much. Mostly one can do is build endurance and aerobic capacity. Doing intervals or just high intensity exercise helps. It burns more carbs (and just more calories per time spent in general), which takes more energy to replenish, also "damages" muscles so that takes energy to repair and make stronger/better, plus metabolism goes up for some time after a high intensity exercise. The whole fat burning zone, is pretty much bull ****.