I-vithamini A ene-Fulum A ayinakutyibilika emanzini. Ukuze kulungelelaniswe nomzimba, umzimba kufuneka ube namafutha afanelekileyo, amaprotheni kunye neemaminerali. Emzimbeni wethu, isibindi kwaye iqokelela i-vithamini A, kodwa xa kuyimfuneko, ngokungahambi kwale vithamini kunokutya ukutya okuqulethe i-vitamin.
Izixhobo zalo ezifanelekileyo zilahleka ngokubonakalisa ixesha elide kwimveliso evulekile kwaye phantsi kwezilonyango ezahlukeneyo: ukunqanda, ukupheka. Isixa esiphezulu sevithamini esinokugcinwa ngonyango sifinyelela kuma-60-80%.
Iipropati nokubaluleka kwevithamini A
Indima ye-vitamin A i-antioxidant iphezulu kakhulu. Ayikwazi ukuchazwa ngokucacileyo. Zonke izakhiwo eziwusizo esizifuna ukugcina impilo.
Ikhuthaza ukulungelelaniswa kweprotheyini ekumzimbeni, ikhuthaza impilo yeselula. I-Vitamin A iluncedo amazinyo namathambo. Ichaneka ngokuchanekileyo iipowuni zeoli kunye nokunceda ukuhlaziya iiseli zamandulo kunye nezitsha.
Ngokubaluleka kwakhe kwamehlo awaziwayo kumaxesha amandulo. Okokuba oogqirha kunye nabagxeki basebenzisa isibindi sokupheka ngobumfama bobusuku, kwaye, njengoko kwaziwa, isibindi sinomlinganiselo omkhulu we-vitamin A. i-vitamin A. I-vitamin isebenzisa imeko eqhelekileyo ye-retina yamehlo kunye nabahlalutyi abazibonayo.
Umgangatho oqhelekileyo wokusebenza wamasosha omzimba, kunye nokukhuselwa komzimba kwisifo sokungenwa kwezifo akungenakwenzeka ngaphandle kwe-vitamin A. Okunyusa ukuchaswa kumagciwane e-mucosal, kunceda umsebenzi we-leukocytes, ukhusela indlela yokuphefumula, inkqubo ye-urrogenital, isisu somzimba. Iingxaki ngeenkqubo ze-endocrine nazo zenza bazive bengabikho i-vitamin A.
Izifo ezifana nesifo semasisi okanye i-smallpox zinyanzeliswa ngokulula kumazwe apho umgangatho wokuphila uphezulu, kodwa ukungondleki kakuhle, apho kunqongophala kwe-vitamin A, kunokuba nzima ukuhamba kwezi zifo, ezingakhokelela ekufeni komntu ogulayo. Ngabo abo banesifo sikaGawulayo, abanama-vitamin A anesifo esaneleyo emzimbeni, banokuphila ixesha elide kunabantu abaqhelekileyo ngenxa yokuba badla i-vitamin A ekudleni kunye nokulungiselela amavithamini.
Ulusu lwethu lufuna le vitamin. Ikhuthaza ukuhlaziywa kweeseli, ubuyisela izicubu, iimbumba zomzimba. Nokuba unokufumana i-antioxidant analogues ye-vitamin A kwizonyango zokulwa nokuguga. Iphilisa izifo zesikhumba, iingxaki ngobuso, umzimba, zinceda ukuphulukisa ukutshisa, amanxeba. Inceda intsebenziswano ye-collagen, ikhuthaza ukuhlaziywa kwazo zonke iziqulatho zezicubu. Ukuyisebenzisa ngexesha lokukhulelwa, unina unceda ukuphuhliswa kwengqama yakhe, ukuyiphucula nge-vitamin A. Ukusilela kwayo kungalimaza umntwana - kungenzeka ukuba unqongophele ubunzima besana olusanda kuzalwa. Kwakhona kunceda kunyango lomhlaza ngokubambisana ne-beta-keratin kunye nokubuyiswa komzimba emva kokusebenza.
Ukuba i-vitamin A isasazwa ngokusemzimbeni, izixhobo zayo ezisebenzayo zinceda ukukhusela intliziyo kunye nemithambo. Ngokuthi i-atherosclerosis kunye ne-angina, inceda ukunciphisa "inobungozi" kunye nokwanda kwe "cholesterol".
Iimveliso eziqukethe i-retinol (i-vitamin A)
I-Vitamin A inokufumaneka kwi-green, ebomvu, nokutya okwephuzi. Umzekelo: kwimifuno, iintlobo ezahlukeneyo zeeriteji neziqhamo. Kodwa, kunye nemithombo ecebileyo equkethe inani elikhulu lala mavithamini yi-pumpkin, iparsley, isipinashi, i-apricots kunye neekroti. Ziqulethe zonke zazo. Kwaye ngaphandle kwezi ziqhamo kunye neziqhamo ngokwawo zinezixhobo ezincedo.
Kodwa ke umthombo ongcono kakhulu we-vitamin A yioli yeentlanzi kunye nesibindi, kwaye ngokubanzi kunokufumaneka kwi-bhotela, izikhupha zeqanda, ubisi kunye ne-ukhilimu. Ngokomzekelo, inyama yenkomo, okusanhlamvu kunye neemveliso ze-vitamin A eziphantsi kweoli zigcinwa ngobuncinane kakhulu.
Xa udla iintlobo ezahlukeneyo zemifuno kunye neziqhamo ezine-beta-kerotini, iimpendulo ezinobungozi zenzeka emzimbeni ovelisa i-vitamin A. i-antioxidant.
Kodwa nangona kunjalo izazinzulu ziye zityhila ubungqina bokusebenzisa kuphela izixhobo eziqukethe i-vitamin A kunye nokusilela kwayo emzimbeni, awukwazi ukuzenzela umzimba. Kubalulekile ukusebenzisa amalungiselelo e-vitamin A aqukethe i-vitamin A. Ayilimazi umzimba, yenze kuphela ukulahlekelwa yi-vitamin.
Ukusebenzisana kwamavithamini A
I-vitamin A ye-antioxidant ihlangene njani nezinye izinto? Kuyaziwa ukuba i-vithamini A ingadliwa yi-vitamin E, ngokubanjelwa kwezona zinto. Kwakhona iyahambelana namavithamini B kunye noD, i-calcium, i-zinc kunye ne-phosphorus.
Ukungabikho kwe-zinc emzimbeni kunempembelelo emzimbeni, kwaye i-beta-carotene ayikwazi ukuguqula i-vitamin A. Ikwachazwa kwakhona ukudibanisa i-beta-carotene ngotywala, oku kubulala isibindi sethu.
I-Vitamin A nayiphi na imeko ayifanele isetyenziswe kunye nama-retinoids-kuya kuba yingozi kumzimba, kuya kubakhomaza izicubu kunye nezitho zangaphakathi.
Kwihlabathi lanamhlanje okwangoku, izilwanyana ezininzi eziqulunqwe uluntu, ukukhuselwa komzimba kwaye zizalise iivithamini eziwusizo. Kwakhona, ezininzi iziyobisi ezinevithamini A, ezinceda umzimba ngokungafi, okanye ukuthintela.
Kodwa ezininzi iziyobisi zizaliswe ngokuqokelela iintlobo ezahlukeneyo zamavithamini, ibhalansi leyo ibonakalisa incedo lomnye nomnye.
Kufanelekile ukukhumbula ukuba kulungele ukusebenzisa iindlela zokwenza izilwanyana ukuze uzalise i-vitamin A e-antioxidant, oko kukuthi, ukuba udle ukutya okuqulethe i-vitamin A. Ku luncedo ngakumbi ukuthatha ukutya kwendalo kunokukho iipilisi. Kuphela xa kudingekile ukusebenzisa izixhobo zecomputer, kwaye ngoko ngokwe-oda logqirha, ukuze ungalimazi umzimba wakho.