 " Vitamin D " is the sixth episode of the American television series Glee . The episode premiered on the Fox network on October 7 , 2009 . It was written by series creator Ryan Murphy and directed by Elodie Keene . In the episode , glee club director Will Schuester ( Matthew Morrison ) pits the male and female club members against each other for a mash @-@ up competition . Will 's wife Terri ( Jessalyn Gilsig ) takes a job as the school nurse to stop him becoming closer to guidance counsellor Emma Pillsbury ( Jayma Mays ) , but is fired after giving the students performance @-@ enhancing pseudoephedrine tablets . 
 " Vitamin D " <a href='drop_aux' title='1'><mark>is</mark></a>the sixth episode of the American television series Glee . The episode premiered on the Fox network on October 7 , 2009 . It was written by series creator Ryan Murphy and directed by Elodie Keene . In the episode , glee club director Will Schuester ( Matthew Morrison ) <a href='uninflect' title='2'><mark>pits</mark></a> the male and female club members against each other for a mash @-@ up competition . Will <a href='null_genetive' title='3'><mark>'s</mark></a>wife Terri ( Jessalyn Gilsig ) <a href='uninflect' title='4'><mark>takes</mark></a> a job as the school nurse to stop him becoming closer to guidance counsellor Emma Pillsbury ( Jayma Mays ) , but is fired after giving the students performance @-@ enhancing pseudoephedrine tablets . 
 Vitamin D  da sixth episode of the American television series Glee . Tdaepisode premiered on the Fox network on October 7 , 2009 . It was written by series creator Ryan Murphy and directed by Elodie Keene . In the episode , glee club director Will Schuester ( Matthew Morrison ) pit the male and female club members against each other fa a mash @-@ up competition . Will  wife Terri ( Jessalyn Gilsig ) take a job as thdachool nurse to stop em becoming closer to guidance counsellor Emma Pillsbury ( Jayma Mays ) , but is fired after givin the students performance @-@ enhancing pseudoephedrine tablets .