Fifty-two patients with fasting glucose @-@mg / dL or glycosylated hemoglobin ( HbA@c ) @ % and alanine aminotransferase ( ALT ) @-@ IU/L were randomized to receive metformin ( @mg t.i.d. ) , or metformin ( @mg t.i.d. ) and carnitine-orotate complex ( @mg t.i.d. ) for @ weeks ( n = @ per group ) .