Increasing your lean body mass and reducing your body fat can be done in one of two ways. You can either increase your lean body mass and maintain your fat mass or you can maintain your lean body mass and decrease your fat mass. So what does this mean for you? Well, it really depends on your goals and what you are trying to accomplish. For example, losing body fat means losing weight, which can be a tricky process. Because there is a common trend that when you lose weight, you typically lose muscle mass too, unless you are eating enough protein, having a small enough caloric restriction over the given period of time and are still lifting. The second way, putting on muscle mass can be difficult for some people. Anecdotally, it does seem that some people are able to put on more muscle mass than others. Regardless, you need enough protein and enough total calories to build muscle mass. So what is the common theme? Lifting weights and consuming enough protein. Whether your goal is to lose fat or build muscle, both are needed.Check out Upper Echelon Nutrition Whey Protein Isolate if you want to help increase your lean body mass. Each serving provides 22 grams of some of the highest-quality whey protein out there. The ingredients are all-natural - we only use cocoa powder, Himalayan rock salt, and Stevia for flavoring - resulting in a protein that quite simply tastes amazing. On top of that, each batch of our whey isolate undergoes a strict quality control process that includes independent third party testing to ensure that our protein is exactly what we say it is, free of any harmful substances or contaminants.