I-Vitamin A - imithombo, imiphumela emzimbeni, imiphumela yokuntula kanye ne-overdose

Okuqukethwe okuqinisekisiwe

I-Vitamin A yigama elivamile lezinto eziningana eziphilayo ezivela eqenjini lama-retinoids. Ibuye ivame ukubizwa ngokuthi i-Retinol, i-beta-carotene, i-axophthol ne-provitamin A. Iyingxenye yeqembu lamavithamini ancibilikayo amafutha. Ezitshalweni, le nhlanganisela iqoqa ngendlela ye-carotenoids. Emzimbeni, uvithamini A ugcinwa njenge-Retinol esibindini nasezicubu ze-adipose. Ingenye yamavithamini okuqala atholakala emlandweni wezokwelapha. Ngaphambilini, ngisho nangaphambi kokutholakala kwe-vitamin A, imiphumela yokuntula kwayo yayiphathwa ngendlela engokomfanekiso abaseGibhithe lasendulo, amaGreki namaRoma. Lesi sifo sasibizwa ngokuthi ubumpumputhe ebusuku noma ubumpumputhe ebusuku futhi ukwelashwa kwakuhlanganisa ukudla isibindi sesilwane esiluhlaza noma esiphekiwe.

Indima kavithamini A emzimbeni

I-Vitamin A iyivithamini ebaluleke kakhulu ebalulekile ekusebenzeni kwemizimba yethu. Idlala indima enkulu ohlelweni lokubona, ithonya ukukhula, futhi ilawula ukukhula kwezicubu ze-epithelial namanye amangqamuzana emzimbeni. Ngaphezu kwalokho, inezindawo zokulwa nomdlavuza, ivikela i-epithelium yesistimu yokuphefumula ngokumelene nezinambuzane, iqinisa amasosha omzimba, ivimbele izifo, isiza ukulwa namagciwane namagciwane, igcina isimo esifanele sesikhumba, izinwele nezinzipho, futhi ithinta futhi ukusebenza kahle kwe-membrane yamaseli. I-Vitamin A ivuselela isikhumba esomile, ngakho-ke kufanelekile ukusebenzisa izimonyo ngokufaka kwayo, njengejeli yokuhlanza i-Vianek evuselelayo yesikhumba esivuthiwe nesibucayi.

Ingenye yezakhi ezibaluleke kakhulu ezakha amasosha omzimba. Ngakho-ke, kufanelekile ukunezela ukuntula kwe-vitamin A ekudleni ngezithako zokudla ezinokuqukethwe okuphezulu kwe-vitamin A, njenge-vitamin A 10.000 IU evela e-Swanson kanye nesengezo se-vitamin A esivela kuDkt Jacob's.

I-Vitamin A - Izinzuzo Zezempilo

I-Vitamin A iyisakhi esibalulekile esizuzisa impilo yakho ngezindlela eziningi.

I-Vitamin A iyi-antioxidant enamandla

I-Provitamin A carotenoids efana ne-beta-carotene, i-alpha-carotene ne-beta-cryptoxanthin izandulela zikavithamini A futhi inezindawo zokulwa ne-antioxidant.

Ngokwemiphumela yocwaningo olwanyatheliswa ku-Pharmacognosy Reviews ngo-2010, i-carotenoids ilwa nama-radicals mahhala - ama-molecule asebenzayo kakhulu angalimaza umzimba wethu ngokubangela ukucindezeleka okwenziwe nge-oxidative. Ukucindezeleka okwenziwe nge-oxidative kuxhunyaniswa nezifo ezihlukahlukene ezingapheli ezifana nesifo sikashukela, umdlavuza, isifo senhliziyo, nokuncipha kwengqondo, okubuye kuqinisekiswe izifundo ezifana nalezo ezishicilelwe ku-Oxidative Medicine kanye ne-Cellular Longevity ngo-2017.

Ukudla okuphezulu kwe-carotenoid kuhlotshaniswa nengozi ephansi yeningi lalezi zimo, njengesifo senhliziyo, umdlavuza wamaphaphu, nesifo sikashukela.

Bona futhi: I-Alpha carotene umuthi omuhle wokuvimbela

I-Vitamin A ibalulekile empilweni yamehlo futhi ivimbela ukonakala kwe-macular

I-Vitamin A ibalulekile ekugcineni amehlo. I-Vitamin A iyadingeka ukuze kuguqulwe ukukhanya okufinyelela esweni kube isignali kagesi engathunyelwa ebuchosheni. Eqinisweni, enye yezimpawu zokuqala zokuntuleka kukavithamini A kungase kube ukungaboni ebusuku, okwaziwa ngokuthi ubumpumputhe ebusuku.

Ukungaboni ebusuku kwenzeka kubantu abangenawo uvithamini A, njengoba le vitamin iyisithako esiyinhloko ku-pigment rhodopsin. I-Rhodopsin itholakala ku-retina yeso futhi izwela kakhulu ekukhanyeni. Abantu abanalesi sifo basabona ngokujwayelekile emini, kodwa ababoni kahle ebumnyameni ngenxa yokuthi amehlo abo anobunzima bokucosha ukukhanya emazingeni aphansi.

Njengoba kuqinisekiswe ucwaningo lwango-2015 olwanyatheliswa kuyi- JAMA Ophthalmology , ngaphezu kokuvimbela ukungaboni ebusuku, ukudla inani elifanele le-beta-carotene kungasiza ukwehlisa ukuwohloka kwamehlo abanye abantu ababhekana nakho ngokukhula.

I-Age-related macular degeneration (AMD) iyimbangela ehamba phambili yobumpumputhe emazweni athuthukile. Nakuba imbangela yayo yangempela ingaziwa, kukholakala ukuthi umphumela wokulimala kwamaselula ku-retina, okubangelwa ukucindezeleka okwenziwe nge-oxidative (njengoba kuqinisekisiwe ocwaningweni lwango-2000 ku-Survey of Ophthalmology).

Olunye ucwaningo lwango-2001 olwanyatheliswa ku-Archives of Ophthalmology mayelana nesifo samehlo esihlobene neminyaka lwathola ukuthi ukunikeza abantu abaneminyaka engaphezu kwengu-50 ngokuwohloka okuthile okubonakalayo isithasiselo se-antioxidant (kuhlanganise ne-beta-carotene) kunciphisa ingozi yokuba nokuwohloka kwe-macular okuthuthukisiwe ngama-25%.

Kodwa-ke, ukubuyekezwa kwakamuva kwe-Cochrane kuthole ukuthi izithasiselo ze-beta-carotene zizodwa ngeke zivimbele noma zibambezele ukonakala okubonakalayo okubangelwa yi-AMD.

Bona futhi: Ukwelashwa okusha kweziguli ezine-AMD exudative

I-Vitamin A ingase ivikele ezinhlotsheni ezithile zomdlavuza

Umdlavuza kwenzeka lapho amangqamuzana angavamile eqala ukukhula noma ehlukana ngokungalawuleki.

Njengoba uvithamini A edlala indima ebalulekile ekukhuleni nasekuthuthukisweni kwamangqamuzana, imiphumela yawo engcupheni yomdlavuza kanye nendima ekuvimbeleni umdlavuza iyathakazelisa kubacwaningi.

Ezifundweni zokuqaphela (isb. eyanyatheliswa kuyi-Annals of Hematology ngo-2017 noma i-Gynecologic Oncology ngo-2012), ukudla amanani aphezulu kavithamini A osesimweni se-beta-carotene kwakuhlotshaniswa nokuncipha kwengozi yezinhlobo ezithile zomdlavuza, okuhlanganisa i-Hodgkin's lymphoma, kanye nomdlavuza womlomo wesibeletho, wamaphaphu nesinye.

Kodwa-ke, nakuba ukudla okuphezulu kwevithamini A okuvela ekudleni kwezitshalo kuhlotshaniswa nengozi encishisiwe yomdlavuza, ukudla kwezilwane okuqukethe izinhlobo ezisebenzayo zevithamini A akuhlobene ngendlela efanayo (ucwaningo lwango-2015 olushicilelwe ku-Archives of Biochemistry and Biophysics).

Ngokufanayo, ngokocwaningo lwango-1999 olwanyatheliswa kuyi-Journal of the National Cancer Institute, izithasiselo zikavithamini A azizange zibonise imiphumela enenzuzo efanayo.

Eqinisweni, kwezinye izifundo, ababhemayo abathatha izithako ze-beta-carotene baye bathola ingozi eyengeziwe yomdlavuza wamaphaphu (kuhlanganise nocwaningo olushicilelwe ku-Nutrition and Cancer ngo-2009).

Okwamanje, ubudlelwano phakathi kwamazinga kavithamini A emzimbeni wethu nobungozi bomdlavuza abukaqondwa ngokugcwele. Nokho, ngokocwaningo lwango-2015 olwanyatheliswa kuyi-BioMed Research International, ukuthola i-vitamin A eyanele, ikakhulukazi ezitshalweni, kubalulekile ekuhlukaniseni amangqamuzana anempilo futhi kungase kunciphise ingozi yezinhlobo ezithile zomdlavuza.

Bona futhi: Umuthi owehlisa ingozi yokuba nomdlavuza webele. Ucwaningo lusaqhubeka

I-Vitamin A inciphisa ingozi yezinduna

Induna yisifo sesikhumba esingapheli, esivuvukalayo. Abantu abanalesi simo baba nezinduna ezibuhlungu namakhanda amnyama, ngokuvamile ebusweni, emhlane nasesifubeni.

Lezi zinduna zivela lapho izindlala ze-sebaceous zivaleka ngesikhumba esifile namafutha. Lezi zindlala zitholakala ezinhlangeni zezinwele ezisesikhumbeni futhi zikhiqiza i-sebum, into enamafutha e-waxy egcina isikhumba singenamanzi futhi singangeni manzi.

Nakuba izinduna zingenabungozi emzimbeni, induna ingaba nomthelela omubi empilweni yengqondo yabantu futhi iholele ekungazethembini, ekukhathazekeni nasekucindezelekeni (njengoba ucwaningo lwango-2016 olushicilelwe kuClinical, Cosmetic and Investigational Dermatology lubonakala luqinisekisa). Iqhaza eliqondile elidlalwa uvithamini A ekuthuthukiseni nasekwelapheni izinduna ayikacaci.

Ucwaningo olufana nalolo olwanyatheliswa kuyi-2015 Journal of Nutrition & Food Sciences luveze ukuthi ukushoda kwe-vitamin A kungase kwenyuse ingozi yokuba nezinduna ngoba kubangela ukukhiqizwa ngokweqile kwe-keratin protein ezinhlakeni zezinwele. Lokhu kungandisa ingozi yezinduna ngokwenza kube nzima ukususa amangqamuzana esikhumba afile ezinhlakeni zezinwele, okuholela ekuvinjweni kwesikhumba.

Eminye yemithi kavithamini A yezinduna isiyatholakala ngencwadi kadokotela.

I-Isotretinoin iyisibonelo esisodwa se-retinoid yomlomo ephumelelayo ekwelapheni i-acne enzima. Kodwa-ke, lesi sidakamizwa singaba nemiphumela emibi kakhulu futhi kufanele sithathwe ngaphansi kokuqondisa kodokotela.

Bona futhi: Indlela yokususa i-acne?

I-Vitamin A ibalulekile ekuvundeni nasekukhuleni kwengane

Uvithamini A ubalulekile ekugcineni uhlelo lokuzala olunempilo kubo bobabili abesilisa nabesifazane, nasekukhuleni ngendlela efanele kanye nokukhula kwemibungu ngesikhathi sokukhulelwa.

Ucwaningo lwamagundane olwashicilelwa ku- Nutrients ngo-2011 ngokubaluleka kukavithamini A ekuzaleni kwabesilisa lwathola ukuthi ukushoda kuvimbela ukukhula kwesidoda, kubangele ukungazali. Ucwaningo olufanayo okukhulunywe ngalo luphakamisa ukuthi ukushoda kukavithamini A kwabesifazane kungase kuthinte ukuzala ngokunciphisa izinga leqanda futhi kube nomthelela ekufakweni kweqanda esibelethweni.

Kwabesifazane abakhulelwe, uvithamini A uhilelekile ekukhuleni nasekuthuthukisweni kwezitho nezakhiwo eziningi ezinkulu zengane engakazalwa, kuhlanganise nohlaka lwamathambo, isimiso sezinzwa, inhliziyo, izinso, amehlo, amaphaphu namanyikwe.

Kodwa-ke, nakuba engavamile kakhulu kunokuntuleka kukavithamini A, uvithamini A owedlulele ngesikhathi sokukhulelwa kungaba yingozi enganeni ekhulayo futhi ingaholela ekuzalweni okukhubazekile (njengoba kuqinisekiswe izifundo ezifana nalezo ezishicilelwe ku-Archives de Pédiatrie ngo-1997).

Ngakho, izikhulu eziningi zezempilo ziye zeluleka abesifazane ukuba bagweme ukudla okuqukethe uvithamini A omningi, njenge-pate nesibindi, kanye nezithako ezinovithamini A ngesikhathi sokukhulelwa.

Bona futhi: 22q11.2 deletion syndrome. Isici lapho oyedwa ezinkulungwaneni ezimbili kuya kwezine kuzalwa. izingane

I-Vitamin A iqinisa amasosha omzimba

I-Vitamin A isekela impilo yamasosha omzimba ngokuvuselela izimpendulo ezivikela umzimba ezifweni nasekuthelelekeni. I-Vitamin A ihileleke ekwakhekeni kwamangqamuzana athile, kuhlanganise nama-lymphocyte B kanye ne-T, adlala indima ebalulekile ekuphenduleni amasosha omzimba ukuze avikeleke ezifweni.

Njengoba kwaqinisekiswa ocwaningweni lwango-2012 ku-Proceedings of the Nutrition Society, ukuntula kwalesi sakhi somzimba kuholela emazingeni anda ama-molecule abangela ukuvuvukala enza buthaka ukuphendula nokusebenza kwamasosha omzimba.

I-Vitamin A isekela impilo yamathambo

Izakhi ezibalulekile ezidingekayo ukuze kugcinwe amathambo enempilo njengoba ukhula zingamaprotheni, i-calcium, ne-vitamin D. Nokho, ukudla i-vitamin A eyanele nakho kubalulekile ekukhuleni okufanele nokuthuthuka kwamathambo, futhi ukuntuleka kwaleli vithamini kuye kwahlotshaniswa nempilo embi yamathambo.

Ngokocwaningo lwango-2017 olwanyatheliswa kuyi-International Journal of Environmental Research and Public Health, abantu abanamazinga aphansi e-vitamin A egazi banamathuba amaningi okuthuthukisa ukuphuka kwamathambo kunalabo abanamazinga anempilo. Ukwengeza, ukuhlaziywa kwemeta kwakamuva kocwaningo lokubheka kutholwe ukuthi labo abanokuqukethwe okuphezulu kwe-vitamin A yokudla banengozi ephansi engu-6% yokuphuka.

Nokho, amazinga aphansi kavithamini A angase angabi ukuphela kokukhathazeka uma kuziwa empilweni yamathambo. Ezinye izifundo, ezifana nalolo luka-2013 olwanyatheliswa kuyi-Journal of Clinical Densitometry, lwathola ukuthi abantu abadla amanani aphezulu kavithamini A nabo banengozi enkulu yokuphuka.

Noma kunjalo, konke lokhu okutholakele kusekelwe ocwaningweni lokuqaphela olungakwazi ukukhomba imbangela nomphumela. Lokhu kusho ukuthi ukuxhumana phakathi kukavithamini A nempilo yamathambo okwamanje akuqondakali ngokugcwele futhi kudingeka izifundo ezilawulwa kakhulu ukuze kuqinisekiswe lokho okubonwe ezifundweni zokubheka.

Khumbula ukuthi isimo sikavithamini A sisodwa asinqumi ubungozi bokuphuka, futhi umphumela ekutholakaleni kwezinye izakhi ezibalulekile, njenge-vitamin D, nazo zinendima.

Bona futhi: Ukudla ngemva kokuphuka kwamathambo

Ukuba khona kwe-vitamin A.

I-Vitamin A ingatholakala, phakathi kokunye, ebhotela, ubisi kanye nemikhiqizo yobisi, ezinye izinhlanzi ezinamafutha, isibindi nesilwane sezilwane, amaqanda, ubhatata, i-kale, isipinashi kanye nethanga. I-carotenoids efiseleka kakhulu, phakathi kwayo i-beta carotene edlala indima ebaluleke kakhulu, itholakala kusipinashi, izaqathe, utamatisi, upelepele obomvu kanye nolethisi. Izithelo ezicebile ikakhulukazi ku-carotenoids, isibonelo, ama-cherry, amabhilikosi, amapentshisi nama-plums. Umkhiqizo ovame ukusetshenziselwa ukwesekwa futhi uqukethe i-vitamin A kakhulu amafutha ezinhlanzi. Zama, isibonelo, i-Moller's Tran Norwegian Fruit, ongayithenga ngendlela ephephile nelula e-Medonet Market. Zama futhi amafutha ezinhlanzi e-Familijny anamavithamini A no-D - Ezempilo kanye nokugonywa komzimba, atholakala ngentengo yokukhangisa.

Ukwengezwa kwe-Vitamin A kufanele kuboniswane nodokotela wakho womndeni. Manje ungenza ukuvakasha kwakho kukhululeke usekhaya nganoma iyiphi indlela oyikhethayo ngengosi ye-halodoctor.pl.

Ungakwazi futhi ukufinyelela kufulawa wommbila, okubuye kube umthombo kavithamini A. Usetshenziswa esikhundleni sikafulawa kakolweni wendabuko. Ufulawa wommbila we-Pro Natura uyatholakala ku-Medonet Market.

Izimpawu zokushoda kukavithamini A

Abantu abasebenza kumakhompiyutha, abesifazane abakhulelwe nabancelisa ibele, izingane ezizalwa ngaphambi kwesikhathi, abantu abane-cystic fibrosis, izidakwa nababhemayo, kanye nabantu asebekhulile bonke badinga uvithamini A owengeziwe.

Ukushoda kwe-Vitamin A kuvame ukubonakaliswa yilokhu:

1. ukungaboni kahle ebusuku, noma lokho okubizwa ngokuthi “ubumpumputhe basebusuku” (ngokwe-WHO, ukuntula uvithamini A kuyimbangela ehamba phambili yobumpumputhe obungavinjelwa ezinganeni emhlabeni wonke),
2. ukulahleka kwezinwele kanye nokuqina,
3. ukukhula okukhubazekile,
4. isikhumba esiqhekekile kanye nokuqubuka
5. ukomisa ku-cornea kanye ne-conjunctiva yeso,
6. ukuba khona kwezipikili eziphukayo nezikhula kancane,
7. ukwanda kokungenwa yizifo ezibangelwa amagciwane kanye negciwane (ukuntuleka kwevithamini A kukhulisa ukuqina kanye nengozi yokufa ngenxa yezifo ezinjengesimungumungwane nesifo sohudo),
8. induna, i-eczema,
9. i-hyperkeratosis,
10. ojwayele ukuhuda.

Ngaphezu kwalokho, ukushoda kwe-vitamin A kwandisa ingozi ye-anemia nokufa kwabesifazane abakhulelwe futhi kuthinte kabi umbungu, kubambezele ukukhula nokukhula kwayo.

Ekuxilongweni kokuntuleka kwamavithamini, kufanelekile ukuthatha ukuhlolwa kwegazi ngezinga lamavithamini namaminerali. Ukuhlolwa okunjalo kungathengwa ezindaweni ezizimele zezokwelapha ze-Arkmedic.

I-Vitamin A ingatholakala ekwakhiweni kwe-GlowMe Health Labs - yokomela isikhumba ukukhazimula - isithasiselo sokudla esithinta kahle ibala.

I-Vitamin A ngokweqile - izimpawu

Namuhla, sisebenzisa ama-vitamin supplements kaningi, kodwa kufanele kukhunjulwe ukuthi ukusetshenziswa ngokweqile kwe-vitamin A, ngenxa yokuthi inqwabelana esibindini, ingaba yingozi emzimbeni futhi ibe yingozi empilweni (ukusetshenziswa kakhulu kwe-carotenoids ukudla akuhlobene nobuthi nakuba ucwaningo luhlobanisa izithako ze-beta-carotene engozini eyanda yomdlavuza wamaphaphu nesifo senhliziyo kwababhemayo). Ngakho-ke, amafutha ezinhlanzi kufanele athathwe ngokuqinile ngokuvumelana nemiyalelo kadokotela noma ngokusho kwepheshana lemithi.

Ukuthatha uvithamini A omningi kungaholela emiphumeleni emibi kakhulu futhi kungabulala uma kusetshenziswa imithamo ephezulu kakhulu.

Nakuba kungenzeka ukuthi udle inani eliningi le-vitamin A elakhiwe ngaphambilini elivela emithonjeni yezilwane ezifana nesibindi, ubuthi buvame ukuhlotshaniswa nokwesekwa ngokweqile kanye nokwelashwa ngemithi ethile efana ne-isotretinoin. Ubuthi obunamandla kavithamini A buvela ngesikhathi esifushane lapho kusetshenziswa umthamo owodwa, ophakeme ngokweqile kavithamini A, kuyilapho ubuthi obungapheli kwenzeka lapho imithamo engaphezu kwezingu-10 ze-RDA ithathwa isikhathi eside.

Izimpawu zokweqisa (hypervitaminosis) zihlanganisa:

1. hyperactivity kanye nokucasuka,
2. isicanucanu, ukuhlanza
3. umbono ongenalutho,
4. ukunciphisa ukudla,
5. ukuzwela ukukhanya kwelanga,
6. ukuqothuka kwezinwele,
7. isikhumba esomile,
8. i-jaundice,
9. ukukhula okubambezelekile,
10. ukudideka,
11. isikhumba esilumayo
12. ikhanda,
13. ubuhlungu bamalunga nemisipha,
14. ukwanda kwesibindi nokuphazamiseka kwemisebenzi yaso,
15. izilonda zesikhumba eziphuzi,
16. okuqukethwe kwe-calcium ephansi emathanjeni,
17. ukukhubazeka kokuzalwa ezinganeni zomama abathola i-hypervitaminosis ngesikhathi sokukhulelwa.

Nakuba kungavamile kakhulu kunobuthi obungapheli bukavithamini A, ubuthi obunamandla kavithamini A buhlotshaniswa nezimpawu ezinzima kakhulu, okuhlanganisa ukulimala kwesibindi, ukwanda komfutho we-cranial, ngisho nokufa.

Ngaphezu kwalokho, ubuthi bevithamini A bungaba nomthelela omubi empilweni kamama nengane futhi bungabangela ukukhubazeka kokuzalwa.

Ukuze ugweme ubuthi, izithasiselo ze-vitamin A ezinomthamo omkhulu kufanele zigwenywe. Njengoba uvithamini A omningi ungaba yingozi, kutuswa ukuthi uthintane nodokotela wakho kuqala ngaphambi kokuthatha izithasiselo zikavithamini A.

Amazinga aphezulu amukelekayo kavithamini A asebenza emithonjeni yezilwane kavithamini A kanye nezithasiselo zikavithamini A.

Yini okufanele uyenze uma ukuntuleka kwevithamini A noma ngokweqile?

Uma kwenzeka ukuntuleka noma ukweqisa kwe-vitamin A emzimbeni, kufanele sihlaziye ukudla kwethu kwansuku zonke futhi sikuguqule ngendlela engenzeka. Uma kwenzeka ukuntuleka - engeza imikhiqizo ecebile nge-vitamin A ekudleni, futhi ngokweqile - nciphisa ukusetshenziswa kwayo. Uma kutholwa ukweqisa, kufanele unciphise, futhi ezimweni ezikhethekile uyeke ukuthatha izithasiselo zamavithamini aqukethe uvithamini A.

Ngezinye izikhathi, ngisho nasesimweni sokudla okulinganiselayo, ukuntuleka kwevithamini A kutholakala. Esimweni esinjalo, ukwengezwa okwengeziwe kufanele kucatshangelwe. Isixazululo esingcono kakhulu, nokho, siwukuthintana nochwepheshe wezokudla ozohlela ukudla okufanele futhi atuse izinyathelo ezifanele.

Bona futhi: Izithasiselo zamavithamini zisilimaza kangakanani?

Ubuthi be-Vitamin A kanye nezincomo zomthamo

Njengoba nje ukuntula uvithamini A kungaba nomthelela omubi empilweni yakho, ukweqisa nakho kungaba yingozi.

I-Recommended Daily Allowance (RDA) kavithamini A yi-900 mcg kanye ne-700 mcg ngosuku kwabesilisa nabesifazane, ngokulandelana - okufezwa kalula ngokulandela ukudla okuphelele. Kodwa-ke, kubalulekile ukuthi ungadluli Izinga Lokubekezeleleka Eliphezulu Lokungena (UL) le-10 IU (000 mcg) kubantu abadala ukuvimbela ubuthi.

Bheka futhi: Yidla ngomqondo ophusile

Vitamin A - ukuxhumana

Ukusebenzisana okungenzeka kuhlanganisa:

1. Ama-Anticoagulants. Ukusetshenziswa ngomlomo kwezithako ze-vitamin A ngenkathi uthatha le mithi esetshenziselwa ukuvimbela amahlule egazi kungase kwandise ingozi yokopha.
2. I-Bexarotene (iTargretin). Ukuthatha izithasiselo zikavithamini A ngenkathi usebenzisa lesi sidakamizwa esilwa nomdlavuza kwandisa ingozi yemiphumela engemihle njengokuluma, isikhumba esomile.
3. Izidakamizwa ze-Hepatotoxic. Ukuthatha imithamo ephezulu yezithako zikavithamini A kungalimaza isibindi. Ukuhlanganisa imithamo ephezulu yezithako ze-vitamin A neminye imithi engalimaza isibindi sakho kungandisa ingozi yesifo sesibindi.
4. I-Orlistat (i-Alli, i-Xenical). Lesi sidakamizwa sokunciphisa umzimba singanciphisa ukumuncwa kukavithamini A ekudleni. Udokotela wakho angase asikisele ukuthatha i-multivitamin ene-vitamin A ne-beta-carotene ngenkathi uthatha lo muthi.
5. Ama-retinoids. Ungasebenzisi izithasiselo zikavithamini A kanye nale mithi yomlomo oyinikezwa ngudokotela ngesikhathi esisodwa. Lokhu kungandisa ingozi yamazinga aphezulu kavithamini A egazini.