The present invention describes a eukaryotic based synergistic formulation for gastro-intestinal disorders comprising eukaryolics and adjuncts selected from pharmaceutically and or physiologically acceptable components. The invention also describes the manner in which the eukaryolics are isolated from tropical fruits , The medium used for growing them and the method used to convert the formulation to dispensable forms. The medium comprising Glucose for carbon source, soybean casein dextrose medium (SCDM) for Nitrogen source, MgSo4, KCl, NaCl, (NH)4HPO4 and with microelements like MnSO4, FeSO4, Boric acid and Vitamins, D-Biotin and thiamine HCl ranging from 0.001% to 0.6% and designated as BBIL-SB. The formulation can be effectively used to prevent and or cure gastro intestinal disorders by administering in various forms to the mammals including human suffering there from, in a required quantity.