PROBLEM TO BE SOLVED: To provide an anti-obesity agent having an anti-obesity effect obtained by combining a few extracts. SOLUTION: There is provided an anti-obesity agent which is attained by including Forsythia leaf extract, Citrus extract, and at least one extract selected from the group consisting of Licorice extract and Gardenia fruit extract, and it is preferable that the anti-obesity agent contains both Licorice extract and Gardenia fruit extract. The anti-obesity agent has been found to exhibit an ideal anti-obesity effect of increasing basal metabolic level and decreasing white adipocytes by increasing brown adipocytes and muscle weight. COPYRIGHT: (C)2010,JPO&INPIT