Yini Eku-Vitamin A? Ukuntuleka Kwevithamini A Nokweqisa

I-Vitamin A itholakala emithonjeni yezitshalo nezilwane. Utamatisi, izaqathe, upelepele oluhlaza nobomvu, isipinashi, i-broccoli, imifino enamahlamvu aluhlaza, ikhabe, amafutha ezinhlanzi, isibindi, ubisi, ushizi, amaqanda ukudla okunovithamini A.

I-Vitamin A iyiqembu lama-fat-soluble compounds abaluleke kakhulu empilweni yethu. Inemisebenzi efana nokuvikela impilo yamehlo, ukugcina ukusebenza okuvamile kwamasosha omzimba nezitho zomzimba, nokusiza ingane esesibelethweni ukuthi ikhule futhi ithuthuke ngendlela efanele.

Amadoda adinga i-900 mcg kavithamini A ngosuku, abesifazane 700 mcg, izingane kanye nentsha idinga 300-600 mcg kavithamini A ngosuku.

Iyini i-Vitamin A?

I-Vitamin A iyivithamini encibilikayo enamafutha esebenza njenge-antioxidant enamandla emzimbeni. Idlala indima ebalulekile ekugcineni umbono, ukusebenza kwezinzwa nempilo yesikhumba. Njengawo wonke ama-antioxidants, iphinde inciphise ukuvuvukala ngokulwa nomonakalo wama-radical wamahhala.

I-Vitamin A ikhona ngezinhlobo ezimbili eziyinhloko: uvithamini A osebenzayo (obizwa nangokuthi i-retinol, okuholela ku-retinyl esters) kanye ne-beta-carotene. I-Retinol ivela ekudleni okuvela ezilwaneni futhi iwuhlobo "olwakhiwe ngaphambili" lukavithamini A olungasetshenziswa ngumzimba ngqo. 

Olunye uhlobo olutholakala ezithelweni nemifino emibalabala lusesimweni se-provitamin carotenoids. Ukuze i-beta-carotene nezinye izinhlobo ze-carotenoid ezitholakala emikhiqizweni esekelwe ezitshalweni zisetshenziswe umzimba, kufanele ziqale ziguqulwe zibe i-retinol, uhlobo olusebenzayo lukavithamini A. Olunye uhlobo lwevithamini A i-palmitate, evame ukutholakala kwifomu le-capsule.

Ucwaningo luye lwabonisa kaningi ukuthi ama-antioxidants afana ne-vitamin A abalulekile empilweni nokuphila isikhathi eside. Izuzisa impilo yamehlo, iqinisa amasosha omzimba futhi ikhuthaze ukukhula kwamangqamuzana. Manje ake sikhulume ngezinzuzo ze-vitamin A.

Izinzuzo ze-Vitamin A

• Ivikela amehlo ebumpumputheni basebusuku

I-Vitamin A ibalulekile ekugcineni amehlo. Iguqula ukukhanya okubonakalayo kube isignali kagesi engathunyelwa ebuchosheni. Esinye sezibonakaliso zokuqala zokuntuleka kukavithamini A ubumpumputhe ebusuku.

I-Vitamin A iyingxenye ebalulekile ye-rhodopsin pigment. I-Rhodopsin itholakala ku-retina yeso futhi izwela kakhulu ekukhanyeni. Abantu abanalesi simo babona ngokujwayelekile emini, kodwa ukubona kwabo kuyancipha ebumnyameni njengoba amehlo abo elwela ukukhanya.

ukuwohloka kwe-macular okuhlobene neminyakaUkuvimbela nakho kungenye yezinzuzo zikavithamini A.

• Yehlisa ingozi yeminye imidlavuza

Umdlavuza kwenzeka lapho amangqamuzana eqala ukukhula noma ehlukana ngendlela engavamile futhi engalawuleki. I-Vitamin A idlala indima ebalulekile ekukhuleni nasekuthuthukisweni kwamaseli. Ngakho-ke, kunciphisa ingozi yokuba nomdlavuza.

• Isekela amasosha omzimba

Uvithamini A udlala indima ebalulekile ekugcineni izivikelo zemvelo zemizimba yethu. Isekela ukukhiqizwa nokusebenza kwamangqamuzana amhlophe egazi asiza ukucupha nokusula amagciwane kanye namanye amagciwane egazini. Isiphetho esizofinyelelwa kulokhu yilokhu okulandelayo: Ekushodeni kukavithamini A, amathuba okuthola izifo ayanda futhi izifo zelaphe kamuva.

• Isekela impilo yamathambo

Izakhi ezibalulekile ezidingekayo ukuze kugcinwe impilo yamathambo njengoba sikhula amaprotheni, i-calcium kanye Ivithamini Dkuyinto Nokho, ukudla inani elanele likavithamini A kuyadingeka ukuze amathambo akhule futhi athuthuke, futhi ukuntuleka kwaleli vithamini kungawenza buthaka amathambo.

• Kudingekile ekukhuleni nasekuzaleni

Uvithamini A ubalulekile ekugcineni uhlelo lokuzala olunempilo kubo bobabili abesilisa nabesifazane. Iphinde iqinisekise ukukhula nokukhula okuvamile kombungu ngesikhathi sokukhulelwa. Kwabesifazane abakhulelwe, uvithamini A udlala indima ekukhuleni nasekuthuthukisweni kwezitho eziningi ezinkulu nezakhiwo zengane engakazalwa, njengohlaka lwamathambo, isimiso sezinzwa, inhliziyo, izinso, amehlo, amaphaphu namanyikwe.

• Iqeda ukuvuvukala

I-Beta-carotene isebenza njenge-antioxidant enamandla emzimbeni, inciphisa ukwakheka kwama-radicals mahhala futhi ivimbele ukulimala kwe-oxidative kumaseli. Ngakho, izinga lokuvuvukala emzimbeni liyancipha. Ukuvimbela ukuvuvukala kubalulekile ngoba ukuvuvukala kuwumsuka wezifo eziningi ezingalapheki, kusukela kumdlavuza kuye kweyenhliziyo kuye kwekashukela.

• Yehlisa i-cholesterol

I-Cholesteroliyingcina, efana nowoyela etholakala emzimbeni. Umzimba udinga i-cholesterol ukuze isebenze kahle, njengoba ibandakanyeka ekwakhiweni kwamahomoni futhi yakha isisekelo solwelwesi lwamaseli. Kodwa i-cholesterol eningi iyanqwabelana emithanjeni yegazi futhi ibangele ukuqina nokuncipha kwemithambo, okwandisa ingozi yesifo senhliziyo. Inani elanele likavithamini A Ukuyithatha ngokwemvelo kwehlisa amazinga e-cholesterol. 

• Ihlinzeka ngokulungiswa kwezicubu

Ukulungiswa kwezicubu nokuvuselelwa kwamaseli kunikezwa amanani anele kavithamini A. Iphinde isekele ukuphulukiswa kwesilonda.

• Ivimbela amatshe omchamo

Amatshe omchamo ngokuvamile akha ezinsweni abese ekhula kancane kancane futhi athuthuke ku-ureter noma esinyeni. Olunye ucwaningo lubonisa ukuthi uvithamini A ungasiza ekuvimbeleni amatshe omchamo. 

Izinzuzo ze-Vitamin A Esikhumbeni

• Iqeda izinkinga zezinduna njengoba inciphisa ukukhiqizwa kwe-sebum ngokweqile esikhumbeni. Ukusetshenziswa kwe-vitamin A ekwelapheni i-acne kusebenza kakhulu.
• Ngenxa yokuthi i-antioxidant enamandla, inciphisa ukubukeka kwemigqa emihle, amabala amnyama kanye ne-pigmentation.
• I-Vitamin A isiza ukuphulukisa izinsumpa, ukulimala kwelanga kanye ne-rosacea. Ingasetshenziswa ngomlomo noma njengohlelo lokusebenza lwezihloko ukuze uzuze kulezi zimo.
• I-Vitamin A isiza ekuvuseleleni amangqamuzana esikhumba ngokushintsha amangqamuzana afile. Amaseli amasha ahlinzeka ngesikhumba esinempilo futhi esibushelelezi, esinciphisa ama-stretch marks.
• Ijwayele ukugeleza kwegazi.

Izinzuzo Zezinwele Ze-Vitamin A

• I-Vitamin A isiza ukukhiqiza inani elifanele le-sebum esikhumbeni sekhanda. Lokhu kuvimbela izinwele nekhanda ukuthi zome. 
• Ngenxa yokuhlushwa kwayo okuphezulu kwe-antioxidant, i-vitamin A ivimbela ukwakheka kwama-radicals mahhala, ngaleyo ndlela ivikela izinwele ekulimaleni okukhulu. Kuyasiza ukunika izinwele ukukhanya kwemvelo.
• Ngenxa yezakhiwo zayo zokuvuselela, i-vitamin A ilungisa izintambo zezinwele ezomile nezilimele, okwenza izinwele zithambe futhi zibushelelezi.
• I-Vitamin A isiza ukulawula ukukhiqizwa kwe-sebum esikhumbeni sekhanda. Ngakho, kunciphisa ukwakheka dandruff flakes. 

Yini Eku-Vitamin A?

Kwenzeka ngokwemvelo ekudleni okuningi. Ukudla okuqukethe uvithamini A yizi:

• isibindi se-turkey
• isibindi senkomo
• Ithanga
• Ubisi lonke
• basil omisiwe
• Bezelye
• utamatisi
• Spinach
• izaqathe
• Ubhatata
• i-Mango
• amapentshisi
• I-papaya
• amafutha esibindi se-cod
• ijusi yamagilebhisi
• ikhabe
• Itheniphu
• Amabhilikosi omisiwe
• i-marjoram eyomisiwe

• isibindi se-turkey

I-100 grams yesibindi se-turkey inikeza u-1507% wevithamini A edingekayo nsuku zonke futhi ingama-calories angu-273. Inani eliphakeme kakhulu.

• isibindi senkomo

Amagremu angu-100 esibindi senyama yenkomo ahlangabezana nama-300% yenani lansuku zonke likavithamini A futhi angama-calories angu-135.

•  Ithanga

Ithanga Iwumthombo ocebile we-beta carotene. I-Beta carotene iguqulela kuvithamini A emzimbeni. Inkomishi eyodwa yethanga ihlangabezana no-400% wesidingo sansuku zonke sikavithamini A. Futhi iqukethe inani elihle likavithamini C, i-potassium ne-fiber.

• Ubisi lonke

Okuqukethwe okunomsoco kobisi lonke kunothile kunobisi lwe-skim. Ingilazi yobisi oluphelele iqukethe inani elihle le-calcium, amaprotheni, uvithamini D, A kanye ne-magnesium.

• basil omisiwe

ezomile basilInothe ngovithamini A, ozovikela umzimba emdlavuza wamaphaphu nowomlomo. I-100 grams ye-basil eyomisiwe ihlangabezana ne-15% yesidingo sansuku zonke sikavithamini A.

• Bezelye

Inkomishi eyodwa uphizi, ihlangabezana ne-134% yesidingo sansuku zonke sikavithamini A futhi lesi samba singama-calories angu-62. Futhi iqukethe inani elihle lamavithamini K, C kanye no-B.

• utamatisi

Bir utamatisiinikeza u-20% wevithamini A edingekayo nsuku zonke. Futhi iwumthombo ocebile kavithamini C kanye ne-lycopene.

• Spinach

Inkomishi eyodwa isipinashi Ihlangabezana nama-49% wesidingo sansuku zonke sikavithamini A. Isipinashi futhi siwumthombo ocebe kakhulu kavithamini C, manganese, iron, vitamin K kanye ne-calcium.

• izaqathe

izaqatheUkudla kokuqala okufika emqondweni kuvithamini A nempilo yamehlo. Isanqante esisodwa sinikeza u-200% wevithamini A edingekayo nsuku zonke. Izaqathi ziqukethe nenani elikhulu lamavithamini B, C, K, magnesium kanye nefiber.

• Ubhatata

UbhatataInenani eliphezulu lokudla okunomsoco. Ubhatata owodwa uhlinzeka ngama-438% kavithamini A odingeka nsuku zonke.

• i-Mango

Igcwele izakhamzimba ezinempilo namavithamini i-MangoInkomishi eyodwa yawo inikeza u-36% wevithamini A edingekayo nsuku zonke futhi inamakhalori angu-107.

• amapentshisi

amapentshisi Iqukethe amanani amahle e-magnesium, uvithamini C, i-calcium, i-phosphorus, i-potassium nensimbi. Ipentshisi elilodwa linikeza u-10% wevithamini A edingekayo nsuku zonke.

• I-papaya

I-papayaihlangabezana nama-29% kavithamini A odingekayo nsuku zonke.

• amafutha esibindi se-cod

amafutha esibindi se-cod Izithasiselo ziwumthombo ocebe kakhulu wamavithamini namaminerali. Itholakala ngoketshezi kanye nefomu le-capsule enamanani angavamile A, D kanye ne-omega 3 fatty acids. 

• ijusi yamagilebhisi

ijusi yamagilebhisiInezakhamzimba ezifana ne-potassium, i-vitamin E, i-vitamin K, i-phosphorus, i-calcium, amavithamini B, i-vitamin C, i-vitamin A kanye ne-phytonutrients. Lezi zakhi ezibalulekile zilwa nezifo ngokusekela amasosha omzimba.

• ikhabe

Ikhabe linama-kilojoule aphansi futhi liqukethe amavithamini amaningi abalulekile nezakhi ezinenzuzo empilweni. Ucezu lwekhabe lunikeza u-120% wevithamini A edingekayo.

• Itheniphu

Itheniphu iyikhalori ephansi kakhulu, imifino enomsoco futhi iqukethe inani elikhulu likavithamini A.

• Amabhilikosi omisiwe

Amabhilikosi omisiwe awumthombo ocebile kavithamini A. Inkomishi eyodwa yamabhilikosi omisiwe inikeza u-94% wesidingo sansuku zonke sikavithamini A futhi lesi samba singama-calories angu-313.

• i-marjoram eyomisiwe

ezomile marjoram Iwumthombo ocebile wevithamini A. I-100 grams inikeza u-161% wevithamini A edingekayo nsuku zonke. Lesi samba singama-kilojoule angama-271. 

Izidingo Zansuku zonke ze-Vitamin A

Uma udla njalo ukudla okubalwe ngenhla, uzohlangabezana kalula nezidingo zakho zikavithamini A. Ngenxa yokuthi le vithamini i-fat-soluble, ingena kahle kakhulu egazini uma idliwa namafutha.

Ukudla okunconyiwe kwansuku zonke kwe-vitamin A kungokulandelayo:

Izinyanga ezi-0 kuye kweziyisi-6	I-400 mcg
Izinyanga eziyisi-7 kuye kweziyi-12	I-500 mcg
Iminyaka eyi-1 kuye kwengama-3	I-300 mcg
Iminyaka eyi-4 kuye kwengama-8	I-400 mcg
Iminyaka eyi-9 kuye kwengama-13	I-600 mcg
Iminyaka eyi-14 kuye kwengama-18	900 mcg emadodeni, 700 mcg kwabesifazane
Iminyaka engu-19+	900 mcg kwabesilisa kanye 700 mcg kwabesifazane
Ngaphezu kweminyaka engu-19 ubudala / abesifazane abakhulelwe	I-770 mcg
Over 19 / Nursing omama	I-1,300 mcg

Kuyini Ukuntula I-Vitamin A?

Ngaphezu kokugcina impilo yamehlo, uvithamini A uyadingeka ekukhuleni kwamathambo, impilo yesikhumba, nokuvikela ulwelwesi lwamafinyila okugaya ukudla, ukuphefumula kanye namapheshana omchamo ekuthelelekeni. Uma le vithamini edingekayo ingaphuzwa ngokwanele noma uma kukhona ukuphazamiseka kokumuncwa, ukuntuleka kukavithamini A kungenzeka.

Abantu abane-fat malabsorption yesikhathi eside bathambekele kakhulu ekuthuthukiseni ukuntula kwe-vitamin A. Abantu abangenawo uvithamini A i-leaky gut syndromeisifo se-celiac, izifo ze-autoimmune, isifo samathumbu esivuthayo, ukuphazamiseka kwe-pancreatic, noma ukusebenzisa kabi utshwala.

Ukushoda kwe-Vitamin A kubangela ukukhubazeka okukhulu kokubona kanye nobumpumputhe. Yandisa ingozi yezifo eziyingozi ezifana nesifo sohudo esithathelwanayo kanye nesimungumungwane.

Ukuntuleka kukavithamini A kuvame kakhulu emazweni asathuthuka. Abasengozini enkulu yokuntula abesifazane abakhulelwe, omama abahlengikazi, izinsana nezingane. I-Cystic fibrosis kanye nesifo sohudo esingamahlalakhona kwandisa ingozi yokuntuleka.

Ubani Othola Ukuntuleka Kwevithamini A?

Ukushoda kwe-Vitamin A kuvame kakhulu emazweni angathuthukile ngenxa yezifo zamathumbu kanye nokungondleki. Ukushoda kuyimbangela ehamba phambili yobumpumputhe obungavinjelwa ezinganeni emhlabeni wonke. Iwukuntula izakhamzimba okuvame kakhulu emhlabeni. Abantu abasengozini yokuntuleka kwe-vitamin A bahlanganisa:

• Abantu abanezifo ezithinta ukumuncwa kokudla okuvela emathunjini,
• Labo abahlinzwe behlisa isisindo,
• Izidlo ze-vegan eziqinile
• Ukuphuza utshwala ngokweqile isikhathi eside
• Izingane ezincane eziphila ngobumpofu
• Abokufika abasanda kufika noma ababaleki abavela emazweni anemali ephansi.

Yini Ebangela Ukuntuleka Kwevithamini A?

Ukuntuleka kwevithamini A kubangelwa ukunganele isikhathi eside kwe-vitamin A. Kuyenzeka futhi lapho umzimba ungakwazi ukusebenzisa uvithamini A ekudleni. Ukuntuleka kwevithamini A kungabangela izifo ezifana nalezi:

Izifo ezibangelwa ukushoda kwe-vitamin A

• isifo se-celiac
• Isifo sikaCrohn
• Giardiasis - ukutheleleka emathunjini
• i-cystic fibrosis
• Izifo ezithinta ama-pancreas
• i-cirrhosis yesibindi
• Ukuvinjwa kwamathumbu ngokugeleza kwenyongo esibindini nasenyongweni

Izimpawu Zokuntula I-Vitamin A

• Ukoma kwesikhumba

ukungatholi uvithamini A owanele eczema futhi kuyisizathu sokuthuthukiswa kwezinye izinkinga zesikhumba. Isikhumba esomile sibonakala ekuntulekeni okungapheli kukavithamini A.

• iso elomile

Izinkinga zamehlo ziphakathi kwezimpawu ezenzeka ngokuntuleka kukavithamini A. Ukuntuleka okukhulu kungaholela ekuphuphuthekeni okuphelele noma ukufa kwe-cornea, okubizwa ngokuthi ama-Bitot spots.

Iso elomile noma ukungakwazi ukukhipha izinyembezi kungenye yezimpawu zokuqala zokuntuleka kukavithamini A. Izingane ezincane zisengozini enkulu yokuba namehlo omile uma zishoda ngovithamini A.

• Ubumpumputhe basebusuku

Ukuntuleka okukhulu kwevithamini A kungabangela ubumpumputhe ebusuku. 

• Izinkinga zokungazali nokukhulelwa

I-Vitamin A ibalulekile ekuzaleni kokubili kwabesilisa nabesifazane, kanye nasekukhuleni okufanele kwezinsana. Uma unenkinga yokukhulelwa, ukuntuleka kukavithamini A kungase kube esinye sezizathu. Ukushoda kwe-Vitamin A kungaholela ekungabini abantwana kwabesilisa nabesifazane.

• Ukukhula okubambezelekile

Izingane ezingatholi uvithamini A owanele ziba nezinkinga zokukhula. Lokhu kungenxa yokuthi uvithamini A ubalulekile ekukhuleni okufanele komzimba womuntu.

• Izifo zomphimbo nesifuba

Ukutheleleka njalo, ikakhulukazi emphinjeni noma esifubeni, kungaba uphawu lokuntuleka kukavithamini A. 

• Inxeba alipholi

Amanxeba angapholi ngokuphelele ngemva kokulimala noma ukuhlinzwa kuthiwa abangelwa amazinga aphansi kavithamini A. Lokhu kungenxa yokuthi uvithamini A uyingxenye ebalulekile yesikhumba esinempilo. i-collagen ukukhuthaza ukubunjwa kwayo. 

• Ukuthuthukiswa kwezinduna

I-Vitamin A isiza ukwelapha izinduna, njengoba ikhuthaza ukukhula kwesikhumba futhi ilwa nokuvuvukala. Ukuntula kubangela ukukhula kwezinduna.

Kutholakala kanjani ukuntula uvithamini A?

Ukuntula kutholwa ngenxa yokuhlolwa kwegazi okuyalelwe udokotela. Odokotela basola ukuthi u-vitamin A untula ngenxa yezimpawu ezinjengobumpumputhe ebusuku. Kulabo abanenkinga yokubona ebumnyameni, ukuhlolwa kwamehlo okufana ne-electroretinography kungenziwa ukuze kutholakale ukuthi imbangela kuwukuntuleka kukavithamini A.

Ukwelapha Ukuntula I-Vitamin A

Ukushoda kwe-vitamin A okuncane kwelashwa ngokudla ukudla okuningi okunothe ngovithamini A. I-Vitamin A enzima Ukwelashwa kwezinhlobo zokuntula ukuthatha izithasiselo ze-vitamin A ngomlomo nsuku zonke.

Ingabe ukuntuleka kukavithamini A kungavinjelwa?

Ukudla njalo ukudla okunothe ngovithamini A kuzovimbela ukuntula uvithamini A ngaphandle uma kukhona ukuntula isikhathi eside emzimbeni.

Isibindi, inyama yenkomo, inkukhu, inhlanzi enamafutha, amaqanda, ubisi oluphelele, izaqathi, umango, izithelo eziwolintshi, ubhatata, isipinashi, i-kale kanye neminye imifino eluhlaza wukudla okuqukethe uvithamini A omningi.

Yidla okungenani izilinganiso ezinhlanu zezithelo nemifino ngosuku. 

Yiziphi Izingozi Ze-Vitamin A Eyeqile?

I-Vitamin A igcinwa emzimbeni wethu. ivithamini encibilika ngamafuthakuyinto Lokhu kusho ukuthi ukusetshenziswa ngokweqile kungaholela emazingeni anobuthi.

I-Hypervitaminosis A ibangelwa ukudla kakhulu uvithamini A owakhiwe kusengaphambili ngezithako eziqukethe amavithamini. Lokhu kubizwa nge-vitamin A poisoning. Ukuthatha izithasiselo kanye nemithi kungabangela ubuthi be-vitamin A.

Vitamin A Ubuthi

Uma kunovithamini A omningi emzimbeni, i-hypervitaminosis A, noma ubuthi bevithamini A, kwenzeka.

Lesi simo singaba sibi noma singapheli. Ubuthi obuyingozi kwenzeka phakathi nesikhathi esifushane, ngokuvamile phakathi kwamahora ambalwa noma izinsuku, ngemva kokudla amanani amakhulu kavithamini A. Ubuthi obungapheli kwenzeka lapho inani elikhulu likavithamini A linqwabelana emzimbeni isikhathi eside.

Uma kunobuthi bevithamini A, ukukhubazeka kokubona, ubuhlungu bamathambo kanye nezinguquko zesikhumba. Ubuthi obungapheli bungabangela ukulimala kwesibindi nokucindezeleka ebuchosheni. Kubantu abaningi, isimo siba ngcono lapho ukudla kwabo uvithamini A kuncipha.

Yini Ebangela Ubuthi Be-Vitamin A?

Uvithamini A oweqile ugcinwa esibindini futhi unqwabelana ngokuhamba kwesikhathi. Ukuthatha izithako ze-multivitamin ezinomthamo omkhulu kubangela ukuthuthukiswa kobuthi be-vitamin A. Ubuthi obunamandla kavithamini A ngokuvamile buwumphumela wokumunca ngephutha uma kwenzeka ezinganeni.

Izimpawu ze-Vitamin A Poisoning

Izimpawu zobuthi bukavithamini A ziyahlukahluka kuye ngokuthi bubuhlungu noma bungapheli. Ubuhlungu bekhanda nokuluma kuvamile kukho kokubili.

Izimpawu ze-acute vitamin A poisoning zihlanganisa:

• Ukuba ndikindiki
• Ukucasuka
• Ubuhlungu besisu
• Isicanucanu
• Ukuhlanza
• ukwanda kwengcindezi ebuchosheni

Izimpawu ze-vitamin A ezingapheli zihlanganisa:

• Ukubona okufiphele noma ezinye izinguquko zokubona
• ukuvuvukala kwamathambo
• ubuhlungu bamathambo
• I-Anorexia
• Isiyezi
• Isicanucanu nokuhlanza
• ukuzwela ukukhanya kwelanga
• Ukoma kwesikhumba
• Ukuluma nokuxebuka kwesikhumba
• ukuphuka izinzipho
• Imifantu ekhoneni lomlomo
• isilonda emlonyeni
• ukuphuzi kwesikhumba
• ukulahlekelwa izinwele
• ukutheleleka komgudu wokuphefumula
• ukudideka kwengqondo

Izimpawu ezinganeni nasezinsaneni zihlanganisa:

• ukuthamba kwethambo logebhezi
• Ukuvuvukala kwendawo ethambile phezulu kwekhanda lomntwana (fontanelle)
• umbono kabili
• abafundi abaqhumayo
• I-Coma

Inani elifanele likavithamini A liyadingeka ekukhuleni komntwana ongakazalwa. Ukusetshenziswa kakhulu kukavithamini A ngesikhathi sokukhulelwa kwaziwa ukuthi kudala izinkinga zokuzalwa ezingase zithinte amehlo, ugebhezi lwekhanda, amaphaphu nenhliziyo yengane.

Izinkinga ze-Vitamin A Poisoning

Ukweqile kwe-vitamin A kubangela izimo ezifana nalezi: 

• Ukulimala kwesibindi: I-Vitamin A igcinwa esibindini. Uvithamini A oweqile unqwabelana esibindini futhi ungabangela i-cirrhosis.
• I-Osteoporosis: Ukweqisa kwe-vitamin A kusheshisa ukulahleka kwamathambo. Yandisa ingozi ye-osteoporosis.
• Ukunqwabelana kwe-calcium ngokweqile emzimbeni: Njengoba amathambo ephuka, i-calcium iyaphuma emathanjeni. I-calcium eningi ijikeleza egazini. Lapho i-calcium inqwabelana emzimbeni, ubuhlungu bamathambo, ubuhlungu bemisipha, ukukhohlwa kanye nezinkinga zokugaya ukudla kuqala.
• Ukulimala kwezinso ngenxa ye-calcium eningi: I-calcium ne-vitamin A eyeqile kuholela ekulimaleni kwezinso nasekukhuleni kwesifo sezinso esingamahlalakhona.

Vitamin A Ukwelashwa Ubuthi

Indlela ephumelela kakhulu yokwelapha lesi simo ukuyeka ukuthatha izithasiselo ze-vitamin A ezinomthamo omkhulu. Iningi labantu lilulama ngokugcwele emavikini ambalwa.

Noma yiziphi izinkinga ezivela kuvithamini A ngokweqile, njengokulimala kwezinso noma isibindi, zizophathwa ngokuzimela.

Ukululama kuncike ebucayini bobuthi bukavithamini A nokuthi welashwa ngokushesha kangakanani. 

Xhumana nodokotela wakho ngaphambi kokuba uqale ukuthatha noma yiziphi izithasiselo noma uma ukhathazekile ngokungatholi imisoco eyanele.

Ukufingqa;

I-Vitamin A, i-antioxidant kanye nevithamini encibilikayo ngamafutha, iyisakhi esibaluleke kakhulu sokugcina impilo yamehlo. Iphinde igcine impilo yesikhumba, iqinisa amasosha omzimba futhi iyadingeka ekukhuleni.

Ukudla okuqukethe uvithamini A kuhlanganisa utamatisi, izaqathe, upelepele oluhlaza nobomvu, isipinashi, i-broccoli, imifino enamahlamvu aluhlaza, ikhabe, amafutha ezinhlanzi, isibindi, ubisi, ushizi, amaqanda.

Amadoda adinga i-900 mcg kavithamini A ngosuku, abesifazane 700 mcg, izingane kanye nentsha idinga 300-600 mcg kavithamini A ngosuku.

Ukuthatha kancane kunalokho okudingekayo kuholela ekuntulekeni kwe-vitamin A. Ukuthatha i-vitamin A ngokweqile ngokusebenzisa isithasiselo se-multivitamin kubangela ubuthi be-vitamin A, okuyi-vitamin A eyeqile. Zombili lezi zimo ziyingozi. Ukuze ungavezwa kulezi zimo, kuyadingeka ukuthola uvithamini A ngokwemvelo ekudleni.

Izithenjwa: 1, 2, 3, 4