L./f*A tuf ac.-lL,;l u sV})

4.4,3.5 Zioc ir ttv.r
Analysis of vqisce for nnc cotrqrErion in livd of noie B!, hs ben
pi.qtqr in Tablc 6J. Tlbtc 66 @if6rei zinc @nsrr.lio, in tiv6 0I mote d|! i€d
zinc sulhre ond ZnO alone od wnh iron $trs. The trish6, conosmrroh or iino tol
rr€rr'ioir rr (znsoi @ 30 prn) wlite rhe lowsr comenklrioo ir .f: b oherv.d
(ckh.nr0l ircn @40ppn). som€ l€v.l of zinc $tfrle B pE$nt D lltlrrnd T, .rr ed
'| I . Th. zinc w6 bcrcr rberb.d whq giwn .l@ Or) ad wid .tcMd imn (Tr. A
slmn8 inkEcrion ofNuFcEDTA &d zinc sotphlre ws obsGd n t.j diers Fstrin, in
dcc@rd oberp('otr ofanc. A.Ie I. anJ I: combinatotr! hcd no a.l.ld uin.:b
con@ntntion ofzinc 6 tivcrofr6t5 in se goups €main@ bwd s ompqr.d to n _
Tr conr..ining diffqr coEntdjon or zjn. $tc. T. di.r! I Zin. qid. j shNed b.k,
absoerion b@E k wrs gircn alone &nlpding wirh T6 ed .rr wjrt! sde wc. ot alotr
eucs cr@rty indicaring Uur ir d$ stighty inl€@tel wid iDi sltts,
Som. types otcompeltion nrighr hulc cstlblhhed ror absoryrion betwn zi&
orldo ond non pBent jn dEc @nbindriotrs, con0idjns EpoG orc rwitlbl. on zinc
non in|.Ecrion. Bodrw .ral (lt9) Erod.d dar lhc lb$iplion of ml.ts de ro
iM id psrcdic l!bt. ord.moE is cnhflc.d in i@ deticidr cxFrimdrlt lnifrlts,
Th.y .E @bat! nick l, mssMesE zinc ard crdniun. vdb.ta ./ ,/.(19s4) !usg;i.d
.rhar th.G is t.!e inre.ooliotr b.lween iBn dd zinc in hum&s udr h rtu. r.runu subiccl!
wlrh on inc@jed c.9!cir' ro !b$rb iren do nor.berb moc zjnc. Th",6ln*.*ori*o
thar high @@lfarion of ir@ @ [!ve { n gadv. ef6t or zitu lb$rplion in humo
adulb whd tE nnc .(t imn e giv.n in loluLion. Walsn .r,r {1990) rcoortct hal
wrcn rcn.nd nnc sltB w.G adDiniscrld toSctho in the fsting slale, a higher zincio-
mn ntro b @quiEd to dcmorsrrdc rcduoqt zinc lbsorption r humtus rhh in rode.lj,
srnd.toh.r al (tg8t).xpt.jnn shh int.djm b, usins. ndio isbpic returicu.
ud wholcbod, 6unLin& |I!, Epored no inhibirion of zitrc .b$rprion d a mbr nno
oa iofl ro zinc ot2.5:t *h.h bolh n.bts wd ldnijirltu In w.!.., jnc@inS rtE
'nol.r 6rio lo 25:r Educcd zinc ab$rprion si&irficonrl). Hoqev.r, whon rcn ,nd zinr
seErdhhiflercd in |h. !.n. hohr r.tio sllh a mcil, no inhibibryofr*l ws obsrveJ.
Davidson er at(t985) Gpod.d tha! food wirh iron dod not rltirr zarc abelDlon $,t.n
lo*.r for fiotion amount oaiDn @ usl.,thc resutrs in rhepE* study haresho*.