the bioavailability of riboflavin from fortified palm juice was assessed in young adult men , riboflavin status was assessed from urinary riboflavin excretion and erythrocyte glutathione reductase activity coefficient ( egr-ac ) while iron status was assessed from haemoglobin and serum ferritin concentrations .
C0014792
erythrocyte
C0019046
haemoglobin