I-vitamin A enamafutha angcolile ayichithi emanzini. Ukuze ivumelane nomzimba, umzimba kufanele ube namafutha afanele, amaprotheni namaminerali. Emzimbeni wethu, isibindi bese kuhlanganisa u-vithamini A, kodwa uma kunesidingo, ukungabi nalutho kwaleli vithamini kungadla ukudla okuqukethe le vithamini.
Izingxenye zalo eziwusizo zingalahlekelwa ukuvezwa isikhathi eside emikhiqizweni evulekile futhi ngaphansi kwezinhlobo ezihlukahlukene zokwelapha: ukugaya, ukupheka. Isilinganiso esiphezulu sevithamini esingasindiswa ngale ndlela yokwelashwa sifinyelela ku-60-80%.
Izakhiwo nokubaluleka kwevithamini A
Indima ye-vitamin A antioxidant inkulu kakhulu. Awukwazi ukuchazwa ngokuphawula. Zonke izakhiwo zayo eziwusizo esizidingayo ukuze silondoloze impilo.
Ikhuthaza ukujwayelekile kwamaprotheni emzimbeni, ikhuthaza impilo yeselula. I-Vitamin A iyasiza amazinyo namathambo. Ihambisa ngokufanele ama-deposit fat futhi kusiza ukuvuselela amangqamuzana endala ngamasha.
Mayelana nokuwusizo kwakhe ngamehlo ayewazi ezikhathini zasendulo. Odokotela kanye nabahlengikazi basebenzisa izibindi eziphekwe ngobusuku obumpofu, futhi njengoba kuyaziwa ukuthi isibindi sinomuthi omkhulu we-vitamin A. i-vitamin A. isebenzisa isimo esijwayelekile se-retina ye-eye kanye nabahlaziyi ababukwayo.
Ukusebenza okuvamile kwesimiso sokuzivikela komzimba, kanye nokuzivikela komzimba ekufakeni izifo akunakwenzeka ngaphandle kwe-vitamin A. Okukwenyusa ukumelana nama-mucosal virus, kusiza umsebenzi we-leukocytes, kuvikela indlela yokuphefumula, isimiso se-urogenital, umgudu wamathumbu. Izinkinga ngesistimu ye-endocrine nazo zenza bazizwe bengabikho vitamin A.
Izifo ezifana nesimungumungwane noma isibhokotshi zibekezelela kalula emazweni lapho izinga lokuphila liphakeme khona, kodwa ukudla okunomsoco okuncane, okukhona ukuntuleka okunamandla kwe-vitamin A, kungabangela inkinga yezifo, okungaholela ekufeni komuntu ogulayo. Ngisho nalabo abanesandulela ngculazi, abanamavithamini A anesifo esiningi emzimbeni, bangaphila isikhathi eside kunabantu abavamile ngenxa yokuthi badla i-vitamin A ekudleni nasekulungiseni amavithamini.
Isikhumba sethu sidinga le vithamini. Ikhuthaza ukuvuselelwa kwamangqamuzana, ubuyisele izicubu, izimbungulu ezinamaqanda. Ngisho noma ungathola ama-antioxidant of vitamin A ezithombeni eziguga ukuguga. Uphilisa izifo zesikhumba, izinkinga ebusweni, umzimba, kusiza ukuphulukisa ukuphulukiswa, amanxeba. Isiza inhlanganisela ye-collagen, ikhuthaza ukuvuselelwa kwazo zonke izingxenye zezicubu. Ukusebenzisa ngesikhathi sokukhulelwa, umama usiza ukuthuthukiswa kwengane yakhe, ayilise nge-vitamin A. Ukuntuleka kwayo kungalimaza ingane - kungenzeka ukuthi ingabi nesisindo somntwana osanda kuzalwa. Futhi kusiza ukwelashwa komdlavuza ngokubambisana ne-beta-keratin nasemzimbeni wokutakula komzimba.
Uma i-vitamin A ivame ukuhanjiswa emzimbeni, izingxenye zayo ezisebenzayo zisiza ukuvikela inhliziyo kanye nemithambo. Njengoba i-atherosclerosis kanye ne-angina, kusiza ukunciphisa "okulimazayo" nokwandisa "i-cholesterol" ewusizo.
Imikhiqizo equkethe i-retinol (i-vitamin A)
I-Vitamin A ingatholakala kokudla okuluhlaza, okubomvu, okuphuzi. Isibonelo: emifino, izinhlobo ezihlukahlukene zamajikijolo nezithelo. Kodwa, futhi imithombo ecebile kakhulu equkethe amavithamini amaningi yi-ithanga, i-parsley, isipinashi, ama-apricot nama-carrot. Ziqukethe kakhulu kunakho konke. Futhi ngaphandle kwalezi zitshalo nezithelo ngokwabo zinezinto eziwusizo.
Kodwa okwamanje umthombo ongcono kakhulu wevithamini A yiwoyela wezinhlanzi nesibindi, futhi ngobuningi bungatholakala kubhotela, izikhupha zamaqanda, ubisi kanye nosawoti. Isibonelo, inyama yenkomo, okusanhlamvu kanye nemikhiqizo ephansi yamafutha e-vitamin A igcinwa ngobuncane kakhulu.
Uma udla izinhlobo ezihlukahlukene zemifino nezithelo ezine-beta-kerotin, ukusabela okwenziwe nge-oxidative kwenzeka emzimbeni okhiqiza i-vitamin A. antioxidant.
Kodwa-ke ososayensi baye babonisa ubufakazi bokuthi basebenzisa kuphela izingxenye eziqukethe i-vitamin A ngokuntuleka komzimba, awukwazi ukwakhela umzimba. Kubalulekile ukusebenzisa amalungiselelo e-vitamin aqukethe i-vitamin A. Awulimazi umzimba, kuphela akhiphe ukulahlekelwa yi-vitamin.
Ukusebenzisana kwamavithamini A
I-vitamin A antioxidant ixhumana kanjani nezinye izinto? Kuyaziwa ukuthi i-vitamin A ingadliwa yi-vitamin E, ukuze kutholakale okungcono kwezinto eziphilayo. Futhi iyahambisana namavithamini B kanye noD, D, calcium, zinc kanye ne-phosphorus ewusizo.
Ukuntuleka kwe-zinc emzimbeni kunomthelela omubi emzimbeni, futhi i-beta-carotene ayikwazi ukuguqula ku-vitamin A. Kuphikisana nokuhlanganisa i-beta-carotene ngotshwala, lokhu kubulala isibindi sethu.
I-Vitamin A kunoma yikuphi okungafanele isetshenziswe kanye nama-retinoids - iyolimaza umzimba, iyolimaza izicubu nezitho zangaphakathi.
Ezweni lanamuhla okwamanje, izidakamizwa eziningi zakhiwe isintu, ukuvikelwa komzimba nokugcwalisa ngamavithamini awusizo. Futhi, izidakamizwa eziningi ezinamavithamini A, ezisiza umzimba ukuthi ungabi naso, noma ukuvimbela.
Kodwa izidakamizwa eziningi zigcwele ukuqoqwa kwezinhlobo ezahlukene zamavithamini, ibhalansi elibhubhisa usizo lomunye nomunye.
Kubalulekile ukukhumbula ukuthi kungcono ukusebenzisa amakhambi omuntu ukugcwalisa i-vitamin A e-Antioxidant, okungukuthi, ukudla ukudla okuqukethe i-vitamin A. Kungcono kakhulu ukuthatha ukudla okungokwemvelo kunamaphilisi. Kuphela uma kunesidingo ukusebenzisa izinsimbi zokwelapha, bese ngokulandela umyalelo kadokotela, ukuze ungabangeli umonakalo emzimbeni wakho.