BSF maggots are the larvae of the fly Hermetia illucens L. BSF maggot flour has a very high animal protein content, besides that BSF maggot flour also contains carbohydrates, amino acids, chitin and Antimircobial peptide (AMP). This research aims to determine the effect, index and activity values that can determine the potential of BSF maggot flour as a prebiotic agent using L. bulgaricus Lacti…