The Vikings have now signed six of their 11 draft picks:
Nwangwu, 23, played four years at Iowa State before being selected in the fourth round of the draft with the No. 119 overall pick.
Nwangwu is expected to sign a four-year rookie contract worth $4.23 million that includes a signing bonus of $752,800.
During his career at Iowa State, Nwangwu rushed 143 times for 744 yards (5.2 YPC) and four touchdowns.