(2002 ZCGJYGB) 'K 'CGI ,141 LZM F B G V Z F SYKZG\ QJZSG FRGH\ KVSG\ ,FRGH\ KPZGD ,FKZB QC QZT ,NYRZV F[P FVKI ,KCZTPF NKNDFG FVKI HGIP ,\KNNM \GBKZC K\GZK[ ,QGKRMJF ,JZGVVZ FBGVZN FJNGYVF ,FIV[PF \BGVZN 'IPF ,\K\ZGSPG FPKN[P FBGVZN 'IKF KM BXPR ,E[F QJZS \GNGIC FERYC TXGC[ ZIB ZYIPC ZYKTC ,FPKN[PF FBGVZF OGI\C GTKK\SF OK[RFP 62% ,OKRKPJKGG OKNZRKP 49.6%) BVZP KIPXCG OKNZRKPC ,OKRKPJKGGC .|4~ (YGZK F\ 17.3%-G BVZP KIPX 24.6% [GN[C OKNVGJP CZYC NBZ[KC FRGZIBN FTXGC[ FZKYSC OKYGNF OKNVGJPFP 51.2% KM BXPR ,FKDGNGYRGBN \GBVZKP OGI\P OKRG[ OKTXPBC GTKK\SF GNB \GBVZKPC QJZSF \NIPC 10%-C FBXPR OKRKPJKG-FDP N[ FNKJRFG ,FPKN[PF FBGVZF .|5~ OKZIB FRGH\ KVSG\ \NKJR FRKGX BN .OKNVGJPFP Z\GKG Z\GK \NCGYPG FXGVR \MVGF FRGH\ KVSG\ \MKZX OKZXG\ ,OKNZRKP ,OKRKPJKG OKNNGM FRGH\F KVSG\ .KCZTPF ONGTC -K\CG \IYZP-K\CN OGKM SRMRF NM .OKZIB OKZK[M\G OKKIPX .GNB OKZK[M\C OKSGPTF OKVEPFP ONT\FN NGMK GRKB TCJ OKZMPRF OKRG[ FRGH\ KVSG\ 20,000-P FNTPN OKPKKY C"FZBC .O[ZKP BNN GH FRKEPC FRGH\ KVSG\ N[ \GZKMPF GTKDF 1998 \R[C 50%=35% KM BKF FMZTFFG ,ZNGE EZBKNKP 14-M N[ Y\T OGMSN NBZ[KC .|7,6~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|8~ OKZMGPG OKZEDGP OKKBGVZ OKEEP \KGG\C OKRKGXP ORKB[ OKNKTZ OKZPGI UBG KBGGN-KVSG\ OKVSGP FRKB \KGG\F KCD-NT \RKGXPF FNGM\F[ GB |10,9~ FNGM\F \BH OT .|12,11~ NKTVF ZPGIF N[ \YKGEPF FNGM\F \B \VY[P \GKZIB N[ \PKGSP FEKP OKBZP OKRZXKFP YNI KM ,QKKXN [K \GMKB \ZYCN OKZXG\F \B KBPXT QVGBC OZKCTFC \KZGCKX LMC QKB ONGB .( ) \KREVY .ZXGPF N[ G\GMKBN Z[BC ZG[KB GMP ± Good Manufacturing Practice N N MC \C I Z R F M B K F F RG H\ F K V S G\ \M K Z X Z [B M QJZSF \NIPC OKYGNF OKCZ OKNVGJP[ BNV QKB ,FKKSGNMGBF GNB FRGH\ KVSG\ \MKZX N[ FVYKFG ,GNB OKTXPBC OD OKZHTR FKKSGNMGBF NNMC Z[BP Z\GK \CIZR OK\TN BKF QJZS KNGIC .|7 ,6 ,4=1~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|5=1~ NCGYPF OKNNGM GNB OKTXPB .'FPKN[P FBGVZ' OTF KVC KGZYF OGI\FP OKKTEP OKRG\R NT OKSSGCP ORKB O\KCZP[ ,OKRG[ OKNGVKJ QGGDP KBPXT QVGBC \K[TR GNB NGVKJ KTXPBC \GTKK\SFF .OKYXGP .OKRG[ OKNVJPG OKBVGZ KEK-NT GB OPXT OKNVGJPF KEK-NT .GNB OKPKN[P OKNGVKJP ECMR YNI FGGFP FRGH\ KVSG\ \NKJR QJZSC OKYGNF OKNVGJP GC GNNMRG C"FZBC TXGC[ ZYIPC ) \[MZMF FRGH\ KVSG\ GNJR 55%-M[ BXPR ,( TXGPPC OKZK[M\ 2.6 LZX NVGJP NM .OKNZRKPG OKRKPJKG GNNM[ KM ZC\SF ,E[F QJZSC ZCTC GNI[ OK[R N[ FZKYSC .|1~ FZKYSC .|2~ OKRG[ FRGH\ KVSG\ Q\NIP LNFPC GNJR QFP 80.9% FZKBPP FNIPC GYN[ \GNVGJPFP 56% KM FNT |3~ \ZIB ,FPKN[PF FBGVZF OGI\P OKTXPBC GTKK\SF QKPF-KMZEC .FRGH\ KVSG\ GMZX 20% OMG\PG colon cancer nutritional supplements; dietary supplements; cancer; complementary medicine; alternative medicine; intergrative medicine. Key words: (2002 ZCGJYGB) 'K 'CGI ,141 LZM -\NKEI ZIBN OK[RC OKRDGZJSBGJKVF \GPZ KMZT \YKECC \GMGPR GNB OKZPGI \GPZ KM ZZC\F ,E[F QJZSC \GYGNF IZGB ZYIPC .|19~ IZGB-\NKEI ZIBN \GBKZC OK[R \PGTN ZMKR QVGBC -JSBGJKV N[ FFGCD FMKZX KM ,ODEGF |20~ FKNZJSGBC TXGC[ .E[F QJZSC \GYNN QGMKSF \B K\GTP[P QVGBC F\KIVF OKRDGZ N[ \GKCZ\ GIYNR OFC[ |21~ OKK\ECTP OKZYIPC ,LMN USGRC N[ \CMTP FTV[F FPDEGF ,OEB ZGYPP E[ QJZS KB\ .20%=18% N[ ZGTK[C QJZSF KB\ \GCZ\F NT OKRDGZJSBGJKVF QJZSC OKYGNF OKZCDN Z[YFC OD GBXPR OKPGE OKBXPKP OKK\BKSB OKZCD KM ,FNT \GKDGNGKPEKVB \GKGETP ;\KRGPZTF OKZCD \PGTN \KRGPZTF QJZS N[ Z\GK FMGPR \GIKM[C OKYGN ,\GKDGNGKPEKVBF \GKVX\F ECNP ONGB .|22~ CZTPF \GRKEPP -BGJKV \MKZXC NY QGZ\K ODEGP OKK\GCZT\F OKZYIP ZVSPC OKNGIC NGVKJN GB \KRGPZTF QJZS N[ TRP \ZJPN OKRDGZJS \K\GTP[P FEKZK F\VXKR OKZCMT NT OKZYIPC .GH \GZKBPPC \ZK\T FRGH\C GRGHKR OKZCMTF[M \KRGPZTF QJZS \TVGFC -JSBGJKV \VSG\ KM ,BXPR |24~ KRKNY ZYIPC .OKRDGZJSBGJKV QJZS KNGI N[ FXGCYN (Q\[V KTZH) OKRRDKN DGSP OKRDGZ KB\ N[ \GCZ\FF OGXPKXN FPZD ,IG\KRN FR\PF \TC \KRGPZTF KB\ N[ ( ) \RMG\PF KB\F \GGPF \ZCDFNG QJZSF .\B[F apoptosis [K OKRDGZJSBGJKV \VSG\N[ LMN \GKGET \GPKKY ,FPGEC .( ) \[MZMF QJZSC OKNGI NT FCKJKP FTV[F [K OKRGCNVGHKBN FVK[IN KM BXPR ,|25~ FECTPC TXGC[ ZYIPC GZCT[ KTP \PYKZ N[ N\KVB KB\ \GCZ\F NT \CMTP FTV[F OKB\C \RMG\P KB\ \GGPN KGZKD OT ,( ) FZP\F .GNB colon cancer transformation FTV[FN \GKGET \GPKKY ,\G\B[F NT FTV[F ECNP ONGB .FPGRBNP KNGIC NGVKJM OKRDGZJSBGJKV N[ FCKJKPF OFN GYZHGF[ |26~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|16 ~ QF ,F[NI \KRDGZJSB \GNKTV GNB \GCGMZ\N .NGKEZJSBN (Q\[V KTZHC ZYKTC) OKRRDKN \GNNGMG KIPX ZGYPP \GYVGP .(FKGSC OKBXPR ZYKTC) QKHEKBEG QKJSKRD QGDM ,OKRGCNVGHKBG QVGBC OKRDGZJSBGJKVC FZK[T FRGH\F \GK\BKSB OK[R CZYC ONGTC OK[R \PGTN (OGKC OKRGCNVGHKB D"P 200-M) K\GTP[P D"P 10=5-M) OKRDGZJSBGJKVC EGBP FNE Q\RGH\[ ,KCZTPF ZGTK[ KM ,ODEGF \GKDGNGKPEKVB \GKVX\C .(OGKC OKRGCNVGHKB 10=4 KV LGPR \GK\BKSB OK[R CZYC OIZFG E[F QJZSP F\GP\F \GIV QVKC E[F QJZS ,QM-NT-Z\K .|17~ \GKBYKZPB OK[R \PGTN FNIP N[ Z\GK FMGPR \GIKM[C QKKVB\PG NNM LZEC ZKBPP .FKNDRBG FYKZPB-QGVXC OK[RN FBGG[FC \GZGZD \IN[PF FYKZPB-QGVXN \GZDFP \GKRVK OK[R[M KM ,FECGTF \RKKRTP \MNGFG FNED ,OKRDGZJSBGJKVC FNE FRGH\N Q\RGH\ \B \GR[PG OK[RC \IGGEPF FPZN FGG\[P BKF[ ET ,E[F QJZS \GIKM[ .|18~ \GKBYKZPBF F B G V Z F \GNB[ \KCZPN \GCG[\F ,\KBGVZF \GZVSF \ZKYS LG\P \GKRKNY \GJNIFN YVSP FRTP \GR\GR QRKBG \GZGZC QRKB GNB \GECGT NT \MP\SPF FBGVZ N[ KIMGRF QEKTC ZYKTC ,\GSSCGP ) ZDBPC ,\BHC QKGXPF \GZPN .( L[PFC GZMHGK) OKKRKNY OKHPZ OKPKKY ZK[TF \KBGVZF \GZVSF FJNIFC NGYK[ \GGFN OKPKGSP OKZYPC OKKG[T[ ,(ZPBPF .EKIKF NVGJPF N[ \KRKNYF evidence based medicine ,\GKTEP \GECGTG OKZYIP NT SSC\FN QGXZF \GZPN ONGB OD FRGH\ KVSG\ \MKZXN \TEGRF \GTP[PF \B QGICN KGBZ FJKN[N KTXPB GH FMKZXC OKBGZF OKNVGJPF N[ O\GBZ \EGYRP -\GMKB \B ZV[N O\RGPBN KG[T[ USGR KTXPBG O\GBKZC NT .|13~ OFKKI OKNVGJPFP ZMKR YNI[ FECGTF BGF GH FKDGSC CG[I JCKF KVSG\ \MKZX NT FJNIFC NVJPF BVGZF \B OKV\[P ORKB B[GRC JTGP TEKP OKBVGZN KM OKRKPBP O\KCZP .|14,3~ FRGH\ O\KCZP .GNB OKVSG\ \MKZX NT WTKKN OKRKRGTP ORKB[ GB FH OKRG[F FRGH\F KVSG\ NT Z\GK EGPNN OKBVGZFP OKVXP FXT \NCYN OFKNB \GRVN GNMGK[ LM ,O\NIPN OKPKB\PF OKVSGB ,FH FGGYP FNGTV-UG\K[N ET .|13~ FNGTV-UG\K[G ,OKZMPP \GXT :\GZGYP ZVSPP [YGCPF TEKPF \B OKNVGJPF OKRG\KT ,OKRGIZK ,\KTGXYP FRKB[ \GZVS ,FIV[P-KCGZYG OKRM[ TCJF KZGEPG TCJF \GKGRIC OKZMGP KEK-NT Q\KRF TEKPG ,OKKPGK .|15~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{ (Y"PS 200 SGM) FKGS CNI D"P 15 { (FKGS IPY 'D 15) FKGS ZK[M\ D"P 15 { (\KVM) OKRGIJ Q\[V KTZH D"P 10 { ('D 50) \TNE KRKTZD D"P 15 { ('D 50) GVGJ . . . . OKKDGNGKPEKVB OKZYIPP QF FH F\ NT \GKTEPF \GKGETF ZYKT .OKKI-KNTC NT OKZYIPPG F\N[ LM NT \GHPZP OKKDGNGKPEKVBF OKZYIPF \GBXG\ OKZYIP N[ CZ ZVSPCG ,|33~ QJZS-\GEDGR \GRGM\ [K YGZKF \GYNN QGMKSF \B \KIVP F\F KM BXPR OKKI-KNTCC GTXGC[ IKM[FG ,OKEKBGRGCNV N[ CZ ZVSP KGXP YGZKF F\C .QJZSC GNB OKZPGI .( ) -F BGF OFKRKCP OYNIG ,QJZS-\EDGR \GNKTV OFN OKSIKKPF [KG ,QGXPKI-KEDGR OF .\KJGKCKJRB \GNKTV KNTCG \YNE-KEDGR OF GNB OKZPGI N[ , E [ F Q J Z S E DR Z Y KT C B K F Q J Z S F \ E DG R \ G N K T VF \GNIPG FCKYF ,\GBKZF ,ZGTF ,CNCNF ,\[MZMF ,\KRGPZTF F Z[ P -F KM BXPR OKZYIP ZVSPC .\GVSGR \GZKBPP QM-GPM .OKRKY\F OKB\F NT TKV[K[ KNCP ,\RMG\P KB\ \GGP O\GGF\FN KRGKIF OKHRB { FHBRKYGZGB CMTP FH ZPGI[ BXPR OKB\ N[ O\GCZ\FN FCG[IF ,SKHRDGKDRB QMG ,QJZS KB\ N[ .|34,29~ OKKRJZS OKZYGIF OKSIKK\P |35~ FRGZIBN GPSZGV[ OKZYIP KR[C ,K\ECTPF ,QG[BZF ZYIPC .E[F QJZS NT YGZKF F\F \TV[FN \GIKM[ F\KKF YGZK F\C OKZ[TGP OKP G\[[ OKZCMTC KM BXPR \K\GTP[P FMGPR QFN[ \GZKBPPF \DZEG QNEGD ,E[F \G\B[ OKZCMTC \G\B[F ,QM-NT-Z\K .ECNC OKP G\[[ OKZCMT \PGTN GKFG Z\GK ZIGBP CN[C GI\V\F YGZK F\C OKCZGTP OKP G\[[ .QKKVGBC \GPKNB \GIV GYECR ,QVKC CGZKYC OKR[ Z[T L[PR[ |36~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|29~ FH FY[P N[ G\GIKJC KCDN IGGJ-KMGZB OKZYIP GTXGC N[ TRPC GB NGVKJC YGZKF F\F CGNK[N OGYP [K QMB OB YGZK F\ CN[N OGYP [K OB FNB[F FNGT ,OKRG[F QJZSF KDGS GB FKVZ\GPKMF \GNKTK \B ZV[K FH NGVKJ OBF ?FKVZ\GPKMC epigallocatechin gallate EGCG EGCG 895 . 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