A tien-cha extract essence characterized by being obtained by subjecting a tien-cha extract to an activated carbon treatment, and a method for producing a fermented food product using the tien-cha extract essence provide a technique which can be replaced for a tien-cha essence obtained by subjecting a tien-cha extract to electrodialysis having various problems, has no effect on flavor while maintaining the effects of the tien-cha extract of increasing the growth ability of lactic acid bacteria and the viability or the like of bifidobacterium bacteria, has an unprecedented effect of increasing the growth ability of bifidobacterium bacteria, and facilitates production and powderization.