Crystal Nelson
Izingane zivame ukudla amavithamini amaningi kakhulu. Abacwaningi baxwayisa ngokuthi bangawubukeli phansi umonakalo wezempilo obangelwa ukweqisa kwe-vitamin C.
Ngokocwaningo lwakamuva olwenziwa yi-US Environmental Working Group, izingane zidla amavithamini A, C, i-zinc ne-niacin amaningi kakhulu. Lokhu ngokuvamile kubangelwa ukudla okukhangiswa njengoba kuhloselwe izingane eziqiniswe ngamavithamini namaminerali.
Abacwaningi bayakhononda: Abazali abaqondiswa kuphela ulwazi lokudla okunempilo olubuyela emuva ekubalweni kwezidingo zansuku zonke eziphelelwe yisikhathi, kodwa futhi nezincomo zokusetshenziswa ezibalwe kubantu abadala. Izingane ezidinga umsoco wansuku zonke ziphansi zingasebenzisa kalula izinto ezithile.
Ngokwezinto ezibonakalayo, abantu abadala banesidingo esiphindwe kathathu samavithamini A no-C ngaphezu kwezingane, isibonelo. Imfuneko yansuku zonke eJalimane ilawulwa yisiyalelo se-EU kusukela ngo-1990.
I-vitamin overdose evela ekudleni okuqinisiwe
Ucwaningo oselushicilelwe manje lubonisa ukuthi izingane zisebenzisa amavithamini namaminerali amaningi kakhulu kunalokho eziwadinga nsuku zonke ngokudla okuqiniswe ngokwenziwa. Ngokwesibonelo, “iphakeji elilodwa” lama-cornflakes ngezinye izikhathi liqukethe inani eliphindwe kabili le-niacin elidingwa ingane ngosuku. Ngakho-ke, ochwepheshe bokudla okunempilo beluleka abazali ukuba bangaziniki izingane ezinempilo amavithamini noma amaminerali engeziwe, njengoba ukudla okulinganiselayo kakade kuhlanganisa imfuneko yansuku zonke.
Ucwaningo lwase-US luphinde lwabala ukuthi ngokuvamile izingane ezondlekile zisebenzisa i-zinc eningi kakhulu engamaphesenti angu-45, kanye namaphesenti angu-8 kavithamini A ne-niacin eningi. Uma izingane zinikezwa amalungiselelo engeziwe kavithamini - njengamaphilisi amavithamini ajwayelekile - izinombolo ziphezulu kakhulu. Lezi zingane zidla i-zinc eningi ngamaphesenti angu-84, i-vitamin A engamaphesenti angu-72, kanti i-niacin engamaphesenti angu-28 idla kakhulu.
Buza ubungozi bokweqisa kwe-vitamin C
Ocwaningweni lwabo, ososayensi baxwayisa ngokubukelwa phansi kwemiphumela yezempilo yokudlula umthamo kavithamini C, ikakhulukazi ezinganeni. Ucwaningo lwezingane ezineminyaka emine kuya kweyisishiyagalombili lubonise ukuthi izifo zesisu kanye nezinkinga ze-metabolic zingenzeka ngemva nje kwesikhashana. Ngokuhamba kwesikhathi, izingozi zezempilo zifinyelela kude kakhulu. Ukusetshenziswa ngokweqile kwamavithamini isikhathi eside kuholela ekulimaleni kwesibindi nohlaka lwamathambo, ukweqisa kwe-zinc kuphazamisa amasosha omzimba futhi i-niacin eningi iba nomthelela wesikhathi eside esibindini njengoshevu.
