Khungu, maso, mafupa, mano - ziwalo zambiri ndi minyewa m'thupi zimafunikira vitamini A. Ngati mukudya zakudya zopatsa thanzi, mutha kuphimba mosavuta kufunikira kwa vitamini A tsiku lililonse. Ngakhale kuti thupi limafunikira pang'ono panthawi yomwe ali ndi pakati, kumwa mowa mopitirira muyeso kungakhale koopsa.
Kodi vitamini A ndi chiyani ndipo imachita chiyani m'thupi?
Mawu akuti vitamini A akuphatikizapo mankhwala angapo monga retinol kapena retinoic acid, koma amagwira ntchito mofanana m'thupi. Vitamini A ndiyofunikira kwambiri m'maso: Mothandizidwa ndi vitamini A, amapanga mtundu wowoneka bwino womwe umapangitsa kuwona kuwala ndi mdima. Kotero popanda vitamini A, tikanakhala akhungu usiku. Vitamini A imathandizanso kupanga mafupa, chichereŵechereŵe, mano, ndipo imakhudzidwa ndi kagayidwe ka mafuta ndi kupanga magazi. Ndipo khungu limafunikiranso vitamini A kuti lizisintha ndikukhalabe zotanuka. Choncho, vitamini A mu mawonekedwe a retinol ndi wotchuka pophika mu zodzoladzola khungu. Vitamini A amayang'aniranso kukula kwa maselo am'thupi ndipo amathandizira ngakhale kuwateteza. Chifukwa vitamini A kalambulabwalo beta-carotene imagwira mwaukali okosijeni mankhwala, otchedwa ufulu ankafuna kusintha zinthu mopitirira, mu thupi, amene amaukira maselo.
Ndi zakudya ziti zomwe zili ndi vitamini A wambiri?
Chofunikira cha tsiku ndi tsiku cha vitamini A nthawi zambiri chimaphimbidwa bwino ndi zakudya zopatsa thanzi. Zakudya monga chiwindi, mafuta a kanjedza, camembert, kapena eel zili ndi vitamini A wochuluka. Zamasamba monga kaloti kapena kale zimakhala ndi vitamini A precursor beta-carotene. Popeza vitamini A ndi imodzi mwa zakudya zosungunuka mafuta, ziyenera kutengedwa ndi mafuta kapena mafuta. Iyi ndi njira yokhayo yomwe thupi lingagwiritsire ntchito bwino.
Kodi vitamini A imagwira ntchito bwanji pa nthawi ya mimba?
Zofunikira za vitamini A zimawonjezeka pang'ono pa nthawi ya mimba. Kuperewera kwa vitamini A kwa amayi apakati kungayambitse mavuto monga kuchepa kwa magazi m'thupi, matenda, kapena khungu la usiku. Komabe, ndikofunikira kuti musamadye kwambiri vitamini A pa nthawi yapakati. Chifukwa ngakhale kuwonjezereka kumodzi - makamaka mu trimester yoyamba ya mimba - kungawononge mwana wosabadwa. Choncho, bungwe la Federal Institute for Risk Assessment limalimbikitsa amayi apakati kuti azipewa chiwindi ndi zakudya zomwe zili ndi vitamini A wambiri.
Siyani Mumakonda