The present invention relates to antisense of oligonucleotides that modulate the expression of and/or function of Fibroblast growth factor 21 (FGF21), in particular, by targeting natural antisense polynucleotides of Fibroblast growth factor 21 (FGF21). The invention also relates to the identification of these antisense oligonucleotides and their use in treating diseases and disorders associated with the expression of FGF21.
