A peptide and a peptide complex of the present inventionexhibit an anti-obesity effect by inhibiting fat accumulationand decomposing already accumulated fat, and exhibit anexcellent effect with respect to diabetes by effectivelyreducing blood sugar. The peptide and the peptide complex of thepresent invention decrease the expression of PPAR.gamma., ACC, andaP2, which are adipogenic markers, increase the expression ofpHSL, AMPK-.alpha.1, CGI-58, and ATGL, which are lipolytic factors,and reduce the size of fat cells and blood cholesterol values.The peptide and the peptide complex of the present invention,which have excellent activity and safety, can be advantageouslyapplied to drugs and quasi-drugs.
