Objective:To investigate the effect of iron saturated recombinant human lactoferrin(Fe-rhLf) on treating iron deficiency anemia(IDA).Methods: SD rats received iron deficient diet and deionized water during the whole experiment.After 4 weeks,the rats with hemoglobin less than 100 g/L were selected and divided into 5 groups randomly.IDA group received 100 mg/(kg·d) casein dissolved in deionized water intragastrically;FeSO4 group received 5.43 mg/(kg·d) [2.0 mg/(kg·d) iron]+100 mg/(kg·d) casein intragastricall...