Unlike other products that you may find in the supplement world, Java Burn is not a fat burner. In fact, it is a metabolic booster that improves the body’s efficiency to melt and use fat by fixing the issues causing a slow metabolism. There are various things affecting your metabolism, such as inflammation, toxins, oxidative stress, free radicals, to name a few, that could make you obese, even without showing a sign. Metabolism is the sum of all activities that involve breakdown and utilization of the food, and any changes to it mean the body will be layering fat all around it, making it gain a lot of weight.