A naturally-derived lipolysis promoter with high safety, which may promote the degradation of the accumulated adipose tissue to control, prevent, and ameliorate obesity to a satisfactory extent, and food-and-drink and feed containing the same containing at least one or more kinds of plants selected from the group consisting of plants of the genus Iresine of the family Amaranthaceae, Tipuana tipu, Bocconia pearcei, Argemone mexicana, and Ladenbergia magnifolia as active ingredients, and food-and-drink and feed containing the same