Dr. Jacob's GranaProstan ferment 100 capsulesLive fermentation improves bioavailability Studies show that not everyone uses pomegranate juices equally well, as the composition of the intestinal flora is of important importance for this1. In live fermentation, selected microorganisms, the use of which has a long tradition, cause a kind of natural pre digestion with their enzymes and thus improve bioactivity. In the process, the fruit's own sugar is broken down. This process was developed by Dr.