The present invention is directed to novel chimeric fibroblast growth factor (FGF) polypeptides, novel DNA encoding chimeric FGF polypeptides, and to the recombinant production of chimeric FGF polypeptides, and to methods, compositions and assays utilizing chimeric FGF polypeptides for the therapeutic treatment of metabolic-related disorders and other conditions, and for producing pharmaceutically active compositions including chimeric FGF polypeptides, the compositions having therapeutic and pharmacologic properties including those associated with the treatment of metabolic-related disorders and other conditions.