Dietary Cholesterol neKardiac Risk
Isu takanzwa kwemazana emakore kuti ropa rakakura reku cholesterol inokosha inokonzerwa nehutachiona hwe atherosclerosis , uye nenzira iyo yekutambudza mwoyo uye kurohwa. Isuwo takanzwa kwemakumi emakore kuti, kuitira kuti tibatsire kuchengeta cholesterol yedu pasi, tinofanira kunge tichidzivirira kudya kwe-cholesterol muzvokudya zvedu. (Zvikuru chaizvo, takamboudzwa kuti kudya mazai akawanda zvakashata kwatiri.)
Asi munaFebruary 2015 VaAmerica vakanzwa nhau dzinotyisa kuti Hurumende yeDare Diary Guidelines Advisory Committee yakabvumira kupedzisa kuratidzira kwayo kwenguva refu kuti tidzivise kudya kwakanyanya mucholesterol. Mazai (uye shrimp uye lobster), zvino zvinooneka, zvine utano hwakanaka zvakare!
Chii Chinonzi Heck Chinoramba Chichienderera mberi?
Iyi nhau yakanga isiri kushamiswa zvakakwana kuna ani zvake ave achiverenga mabhuku ekurapa mumakore achangopfuura (kana zvechokwadi, kwemakumi emakore achangopfuura). Nokuda kwechinhu ichocho, izvi hazvifaniri kunge zvakanyanya kufanirwa kune vanachiremba vazhinji, kunyanya vane cardiologists, vanofanirwa kunzwisisa chimwe chinhu pamusoro pekutsvaira kwemaoetetol.
Hapana kumbove nehupi hunopupu hunogutsa hwechipatori kubva kuongorori hwakanyatsogadzirirwa kuti cholesterol yezvokudya zvinowedzera hutano hwehutano. Nyevero dzinononoka pamusoro pekudya cholesterol dzave dzichinyanya kunetseka pamusoro pezvakanakira.
Zvadaro, mugore ra2013, meta-analysis yakabudiswa muBritish Medical Journal iyo yakatarisa zvidzidzo zvisere zvechirongwa chekuongorora nezvekudya cholesterol nemigumisiro.
Pakati pevanenge hafu-miriyoni vanhu vakanyoresa, pakanga pasina kuwirirana pakati peii kushandiswa uye pangozi yekugadzirisa chirwere chetachiona kana chirwere . (Kana chimwe chinhu, chiitiko chacho chaiva mune imwe nzira: kumusangano unodzivirira neii-kudya.) Chidzidzo ichi chingave chisiri chekupedzisira panyaya iyi, asi ndiyo humwe uchapupu hwakanakisisa hwatinofanira kutarisana naye, zvichida kuva nenguva yakareba.
Ndiyo meta-analysis, vazhinji vanotenda, izvo zvakazoita kuti hurumende yezvokudya zvehurumende ichinje mazano ekupedzisira.
Mashoko Aya Anowirirana Nezvatinoziva Nezve Cholesterol Metabolism
Takaziva kwemakore kuti ngozi yemoyo inonyanyobatanidzwa neLDL cholesterol mazinga. Zvinogona kukushamisa iwe kuziva (uye, kutya kumwe, zvinogona kushamisa vanachiremba vakawanda kuti vazive) kuti cholesterol yezvokudya haina mhinduro yakananga kuLDL cholesterol.
Paunodya kudya kwepamusoro-cholesterol, cholesterol inowanikwa mumvura inoiswa mumakiromicrons (uye kwete muLDL particles), pamwe chete namafuta acids kubva pane zvokudya zvako.
I-chylomicrons inobva yasunungurwa muropa, uye iyo inopa mafuta acid yawakangodya kudumbu (musuru uye mafuta). Mishonga ye chylomicron - iyo inosanganisira zvose zvinodyiwa cholesterol - inotorwa kuchiropa kuti ishandiswe. Cholesterol kubva pakudya kwako, ikozvino, haisati yasunungurwa zvakananga kumatumbu uye haina kunyatsobatanidzwa muLDL particles.
Kazhinji, chylomicrons yakanatswa zvachose kubva muropa mukati meawa kana maviri mushure mekudya. Ichi ndicho chikonzero chikonzero iwe unofanirwa kuva nekutsanya kana iwe uine ropa remiromo yako yakaenzana - hapana munhu anofarira kuyera cholesterol muycyylicicrons kubva chylomicron-cholesterol isingabatanidzi nehutano hwemwoyo.
Dietary cholesterol inogona, zvechokwadi, inokonzera LDL cholesterol mazinga, asi zvisinganzwisisiki. Icho chiropa chechiropa chokugadzirisa zvakakwana "yekurudyi" yehushutori inokonzerwa nezvido zvemuviri. (Cholesterol inobatwa nechiropa inotakurwa mu lipoprotein uye inosunungurwa muropa iro iyo inowanzova LDL cholesterol.) Saka, kana iwe ukadya zvakawanda zvekulesterol, chiropa chinofanirwa kuderedza kushandiswa kwecholesterol - uye kugadzirwa kwayo LDL cholesterol - kubhadhara.
Kuti udzoke zvakare, cholesterol yezvokudya haisi kuendeswa zvakananga kumatavi uye haisi zvakanamatirwa zvakananga kuLDL particles.
Chiropa - iyo nhengo huru yekurongedza - inopindirana pakati pekudya cholesterol uye LDL cholesterol, uye imwe yemabasa ayo ndeyekugadzirisa kubudiswa kwayo kweklesterteri inopindura kudya kwako, kuitira kuchengetedza LDL cholesterol mazinga mune imwe nzvimbo yakatarwa.
Saka, haufaniri kushamisika kuvanachiremba vanotevera mabhuku ezvokurapa, uye vanonzwisisa cholesterol metabolism, kuti vazive kuti cholesterol yezvokudya haisi chinhu chinokosha mukugadzirisa mungozi yemwoyo.
The Bottom Line
Isu isu mazai vanodikanwa vangada kugamuchira purogiramu yehurumende yezvokudya muzana remakore rechi21.
> Sour ces:
Maoko A. Serumum cholesterol inopindura cholesterol yezvokudya. Am J Clin Nutr 1984; 40: 351.
Hegsted DM, Ausman LM, Johnson JA, Dallal GE. Mafuta ekudya uye serum lipids: kuongororwa kwedhiari yekuedza. Am J Clin Nutritio 1993; 57: 875.
Rong Y, Chen L, Zhu T, et al. Egg kushandiswa uye pangozi ye coronary chirwere chemoyo nekurohwa: chirwere-kupindura meta-kuongororwa kwevanotarisira zvidzidzo zveboka. BMJ 2013; 346: e8539.