Kungani Vitamin amaphilisi lokho akusizi, ngisho nelimazayo

Uma Linus Polling necebo brilliant, njengoba ayecabanga, umbono. eyodwa kuphela ushintsho ibhulakufesi evamile kwaba isikhathi umsebenzi kwenziwe usosayensi. Wayengumuntu kakade 65, kodwa wayeya emsebenzini njengakuqala. Polling wayeka embonweni ukuze ungeze orange yakho juice kuyinto vitamin C odingekayo ngosuku Bekubonakala ngasuthi sinani isinqumo ukwengeza Coca-Cola namanje ushukela. Kodwa iqhawe lethu yayiqiniseka ukuthi wayeqinisile.

waba umbono womunye umuntu angathatha kanjani babamba uquqaba

Emibuthanweni yesayensi Polling babenegunya okungahloliwe njengoba ezimbili isikhathi owathola uMklomelo KaNobel (kuhlanganise i-chemistry). Ngakho ukondla umuntu oyedwa amavithamini liqala ukuzungeza kwayo okunqobayo emhlabeni wonke. Yini, ngasendleleni, abaningi ngename kakade Kangimhluphanga embonini eyenza imithi. Kube ukuhlanganisa ngqo: ethandwa kakhulu yindlela okuhlangatshezwana isazi, eyinqwaba wakhula yokuthengisa amavithamini Izithako zokudla. Kodwa nakhu indida: noyedwa izwe yesayensi akazange alinge ngesikhathi kutsi batibophetele ukuqinisekisa ngokunemba imibono Pauling. Kwabe sekuvela ukuthi, nomqondo ukusetshenziswa eyengeziwe amavithamini kwaba yokuphambuka

Ukugcizelelwa izakhiwo antioxidant

Ngu zokuvota, izithasiselo, Antioxidants egcwele singadambisa radicals khulula noma, njengoba zibizwa kanjalo emhlabeni yesayensi, amangqamuzana omoya esisheshayo ukuxubana. izakhiwo Antioxidant, ngokososayensi Vitamin C, i-folic acid, i-beta-carotene no-vithamini E. Ngengozi radicals khulula emzimbeni womuntu elaqala ukutholwa ngu isisebenzi Rochester Isikhungo Rebecca Gershman ngo-1954. Eminyakeni eyalandela, sokuthuthukisa lo mbono wasebamba Denam harman, uProfesa Umsizi Medical Physics uMnyango-University of California at Berkeley. Eminyakeni emibili kamuva kwembulwe ukuthi radicals khulula kuhilelani Ukuwohloka emangqamuzaneni omzimba. Eqinisweni, ukubonakala kwezimbangela eziyinhloko ukuguga lomzimba okuvela zezifo eziningi. Manje ayenziwa yaxoxa ngezinzuzo futhi efanele ibe kuhlu lokuhlukumezeka amavithamini. Futhi-ke, phakathi nekhulu le-20, kwacaca ukuthi Izithako zokudla basolwa empilweni yomuntu.

Izitha eyinhloko umzimba

Kakade ekuqaleni 70-yalolucwaningo wezokwelapha obala wamemezela radicals khulula ngenxa yokuguga umzimba. Yilokho Dr. harman wabhala ngo-1982: "Uma sisebenzela ukunciphisa izinga radicals khulula emzimbeni womuntu, lokho kuyoholela ukwehla kwesilinganiso yokuguga begazi. Kusezandleni zethu kuyisihluthulelo kade. Ngithemba ukuthi lo mbono bazokwazi ukuthola izindlela ukwenza ngcono izinga yezimpilo zethu. "

Theory fiasco

Nokho, umkhuba wonke ucwaningo ukuthi Kwakuseshwa kulo mkhakha amashumi eminyaka, wahlupheka uyisehluleki. Ayikho imiphumela oyifunayo awazange izuzwe. Ukuhlolwa kanye namagundane ezivamile futhi izakhi eyayibonakala injected Antioxidants igazi, wanika yi efanayo. Namagundane akakwazanga ukumelana nanoma imiphumela ezonakalisayo we ukuguga umzimba ngokuvamile, yisiphi isifo ngokukhethekile.

Ngesisekelo eside zokwelapha

Kwaba ngemva kwaba sobala ukuthi umbono ka-nokubheja Izithako antioxidant ayisebenzi amagundane, ososayensi baye baqala abaningi isikhathi eside-zokwelapha kubantu. izifundo Isimiso kwadingeka isikimu jikelele: amavolontiya babezimisele ngesisekelo engu iqembu elifanayo, yokuphila nokuchuma nomphakathi. Abazobhapathizwa akhethiwe zihlukaniswe amaqembu amabili okunemibandela, enye yazo ithola okufakiwe ezithile isikhathi eside, kanye nezinye cha. Ngakho, isimiso indlela kabili izimpumputhe, abacwaningi ngokuphindaphindiwe wembula kancane isithombe aqinisekisayo.

Lolu cwaningo Finnish phakathi 29.000 abahlanganyeli ukubhema emhlabeni kweminyaka eyi-50, phendla okulandelayo: uvithamini A, bathathwa eside isisekelo eside, kungandisa amathuba okuhlaselwa umdlavuza wamaphaphu ngo-16 amaphesenti. I-American postmenopausal abesifazane abaneminyaka amaphesenti 20 ithuba anda okuba nomdlavuza webele mayelana nesigameko vitamin B9 (i-folic acid). Olunye ucwaningo ethe xaxa, wabonisa ngisho imiphumela iyadumaza ngaphezulu. Kokunye sokuhlola, iminyaka emine, savalelisa ukuphila kwabantu abangaphezu kuka-80 kusukela sasekamu amaphilisi ngesikhathi esifanayo, abahlanganyeli eqenjini le-placebo ekupheleni kwesifundo kwakungasehlane laseBeti ngamandla alo. Ngakho, iningi lososayensi liye baphoqeleka ukuba bavume ukuthi umbono ka engayitholi ezengeziwe Antioxidants okungalungile ngokuphelele.