( It ( ( ( ( ( ( plays ( an ( important role ) ) ) ( in ( ( the ( proper absorption ) ) ( of ( dietary iron ) ) ) ) ) , ) and ) ( ( ( ( prevents ( oxidative damage ) ) ( to ( ( many lipids ) ( in ( the body ) ) ) ) ) , ) ( ( enhancing immunity ) ( to ( infection ( -LRB- ( ( ( ( Beyer RE ) , ) 1994 ) -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VP (VBZ plays) (NP (DT an) (JJ important) (NN role)) (PP (IN in) (NP (NP (DT the) (JJ proper) (NN absorption)) (PP (IN of) (NP (JJ dietary) (NN iron)))))) (, ,) (CC and) (VP (VBZ prevents) (NP (JJ oxidative) (NN damage)) (PP (TO to) (NP (NP (JJ many) (NNS lipids)) (PP (IN in) (NP (DT the) (NN body))))) (, ,) (S (VP (VBG enhancing) (NP (NN immunity)) (PP (TO to) (NP (NP (NN infection)) (PRN (-LRB- -LRB-) (NP (NNP Beyer) (NNP RE)) (, ,) (NP (CD 1994)) (-RRB- -RRB-)))))))) (. .)))
It plays an important role in the proper absorption of dietary iron, and prevents oxidative damage to many lipids in the body, enhancing immunity to infection ( Beyer RE, 1994 ) .
(ROOT (S (NP (NNS Lipids)) (VP (VBP play) (NP (NP (JJ several) (JJ important) (NNS roles)) (PP (IN in) (NP (DT the) (JJ human) (NN body))))) (. .)))