 Red lentils for this trial were grown in Saskatchewan, Canada Se 854 μgkg and Idaho, USA Se 0.043 μgkg. Other nutrients will be measured in both crops of lentils at the UofS before dispatching to families in Bangladesh. High-Se and low-Se lentils will be packed in two different coloured packets and will be given to the designated families. The investigators as well as the field staff will be blinded to the types of lentilsdahl being given to each family. 65g lentils per personday will be measured with a cup by the female family head, who typically cooks the moshur dahl lentil soup daily for the whole family. 65g high-Se lentils provide 55 μg Se, which is the recommended daily allowance of 55 μgpersonday. 