I-Retinol ayifakiwe ngokungenangqondo kwindawo yokuqala kwi-uluhlu jikelele lweelfabhethi lwamavithamini: yiyona nxaxheba ebalulekileyo kwiinkqubo zokunciphisa i-oxidation kwaye inxalenye yeembrane zeseli. Iyiphi indima i-vitamin A edlala ngayo emzimbeni, oko kuyiluncedo, imiphumo yokugqithisa nokungabikho kwimeko ebalulekileyo.
Iinzuzo zeVithamini A
Kuxabiseke okhethekileyo kumzimba womntu, kuba le vithamini, efunyenwe kuphela kwioli, yenza i-skeleton, amathambo namazinyo, ixanduva lokuzikhusela. Ngenxa yokutya okwaneleyo kwe-retinol emzimbeni, imisebenzi yokukhawulela eyenza i-mucous surfaces iyanda. Ngaphantsi kwempembelelo yomsebenzi we-phagocytes kunye nezinye izinto ezingekho mbandela, ubunzima bomzimba bunxamnye nemiphumo emibi yeentsholongwane kunye neebhaktheriya.
Imisebenzi ye-vitamin A yindlela yokwakhiwa kwe-fatabetism. Ku luncedo ekusebenzeni ukukhula kwamaseli amatsha nokunciphisa inkqubo yokuguga. I-retinol ikhuthaza ukuphulukana kwi-herpes, imasisi, ukusulelwa kwe-urinary , i-digestive tract and organism respiratory organ. Le nxalenye yinxalenye ebalulekileyo yonyango oluyinkathazo yazo zonke izifo zesikhumba, ezo zibangelwa ukulimala okuhlukahlukeneyo.
I-Vitamin A ekudleni
Ngendlela ye-retinoids, umzimba uyayifumana kwimveliso yemvelaphi yezilwanyana, equka:
- nge-mveliso - isibindi;
- ibhotela;
- ushizi;
- caviar;
- ioli yesibindi seoli;
- isikhupha seqanda.
Ngendlela ye-carotenoids, ingena emzimbeni kunye kunye nokutya kwemvelaphi yezityalo. Ukutya okucebileyo kwi-vitamin A:
- iikaroti;
- ithanga;
- i-broccoli;
- isipinashi;
- iibhothi;
- peaches;
- nettle;
- iidiliya;
- sage;
- oats;
- isinki;
- ingcambu ye burdock, njl
Kutheni i-Vitamin A iluncedo kubafazi?
I-retinol iyimfuneko kubafazi abakhulelweyo ngexesha le-GW. Unoxanduva lophuhliso oluqhelekileyo lwe-embryo kunye nesondlo sayo. "Isidlo" saso kukho ukuhanjiswa kwamahomoni e-steroid kunye ne-spermatogenesis. Ukuba sithetha ngezinto ezifana ne-vitamin A, efanelekileyo, kufanelekile ukuthetha ukuba imeko kunye nomsebenzi weentlanzi ezinamafutha, ezixhomekeke kwimizimba enamafutha, kuxhomekeke kwisixa samavithamini asunamnumzana, kwaye ngoko ke i-retinol. Ilawula iinkqubo zeekhemikhali kwiiseli ezinoxanduva lokukhwabanisa, ngoko ke oogqirha bancomela ukuba oomama nabancinci besesimweni bayongeza ii-vitamin complexes.
I-base lipid yomzimba yenziwa ngumsebenzi we-retinol, ovelisa icandelo elikhutshwe kwiingqungquthela ezinobisi kunye nokucoca ulusu kunye neenwele. Ngenxa yoko, i-vitamin A ibaluleke kakhulu ngobuhle: ikhawuleza ukuhlaziywa kwe-epidermis, ivuselela umkhiqizo we-collagen, iyona nto ibangela ukuba u-elasticity and saturation ne-humity. Le antioxidant ekhuselekileyo ilwa nama-radicals yamahhala, ukukhusela kwiimbilini zeengqondo, ukwandisa izinga le-cholesterol eluncedo kunye nokukhusela ukuphuhliswa kwentliziyo kunye nezifo ze-artery.
I-Vitamin A ebusweni
Iinzuzo ebusweni:
- Iphelisa ukuvutha. Ngaphansi kwempembelelo yakhe, ubuso buhlambulukileyo kwi-acne kunye namabala amnyama.
- Iyakususa i-vitamin A kwiinkinga ngenxa yokukwazi ukuphucula iinkqubo ze-metabolic kunye nokujikeleza kwegazi, ukuvuselela ukuvuselelwa kweseli.
- Ulungelelanisa ubume.
- Ihlaziye kwaye inondle isikhumba.
- Ikhusela izingozi ezingqongileyo.
I-Vitamin A yeenwele
Izinzuzo zeenwele:
- Ukwandisa ukunyaniseka nokukhanya.
- Ilawula umsebenzi weengqungquthela ezikhuselayo, ukukhusela ukoma kunye nophuhliso lwe-seborrhea edibeneyo.
- I-Vitamin A iluncedo ekukhuleni kweenwele.
- Ikhusela izityalo kwimiphumo emibi yeemitha zokukhanya kwe-ultraviolet.
- Unzima ukulahlekelwa.
Inokufunyanwa ekubunjweni kwee-serum, i-masks, i-creams ye-eye, njl njl. Ithengiswa kwindlela yayo ecocekileyo, eyenza sikwazi ukuyongeza kwimalungiselelo eyenziwe ekhaya. Nangona kunjalo, iimaski zobuso zivuselelwa emva kweminyaka engama-30-35, xa umzimba uvelisa i-collagen ayanele. Iinkompositi ezine-retinol zinceda ukufezekisa nokunyaniseka kweenwele. Ziza kuba lula kwaye zibeke nje, kwaye ukubonakala kuya kutshintsha ngokuphawulekayo. Iimifuno ziya kuqina, zikhuphe iingcebiso kunye neempompo ezomileyo, kwaye umphumo obonakalayo uza ngokukhawuleza.
I-Vitamin A yesikhumba
Kunokuba luncedo kwesikhumba:
- Ukwandisa u-elasticity kunye nemisebenzi yokukhusela, ukukhusela ukungena kweeseli ze-epidermal zeebhaktheriya kunye neentsholongwane.
- Ukukhawuleza ukuphilisa ukutywa, amanxeba, izilonda kunye nezinye ukulimala.
- Ukulwa umile we-epidermis ebusika. I-vitamin A, eneenzuzo zesikhumba, zibaluleke kakhulu, yinto ephambili yokusebenza kwemilomo yokucoceka, ubisi lomzimba, iimveliso zokucoceka, kunye nokunye.
- Ilwa nezifo ezifana ne-dermatosis, i-psoriasis, i-furunculosis, ukuvuvukala kweembrane, kunye nokuthiwa "zaedami" kumagumbi omlomo.
I-Vitamin A yezipikili
Izinzuzo zezipikili:
- Iphelisa ukomisa ngokugqithiseleyo kunye nokuhluma.
- Ilukhuni kunye nokubonakala kwe-burrs kwi-okolonogtevom platen.
- I-vitamin A ne-E efanelekileyo yokuncedisa izipikili ekukhuleni kweepiyilethi.
- Ukucubungula ubuso besikhonkwane, kuphelisa intambo.
- Ukwandisa amandla.
I-Retinol ibuyisela kwakhona kwaye iqinisa iiseli ze-epithelial, apho ulusu lubandakanya khona. Abo banomdla wokuba kutheni i-vitamin A iluncedo, kuyafaneleka ukuthetha ukuba yenza isikhumba senzekile kwaye sinethenda kumgca kunye nesakhiwo kunye nombala. Ngenxa yokungabi naso, kukho iingxaki ezahlukahlukeneyo, kunye nokuchasana nemiphumo emibi evela kumatyala angaphandle. Ngokuphathelele iiphonkco, kukho iindawo zokukhusela ezikhethekileyo, ezicetyiswayo ukuba zisebenzise kwixesha eliphakathi kokuhlanjululwa okanye kunye nalo. Zinefuthe lokunyanga, ukwenza izipikili ziqine kwaye ziphilile, zinamandla kwaye zintle.
Imfuneko yemihla ngemihla yevithamini A
Umthamo ofunekayo wemihla ngemihla kumntu ngu-10,000-25,000 IU, ebizwa ngo-μg ngu-3000-7500, ngokuxhomekeka kubukhulu bomzimba. Isiqhelo se-vitamin A kubantwana sichaphazelekayo phakathi kwe-400 ne-800 microgram ngosuku. Amagcisa amavithamini ayenzayo athathwe kabini ngosuku - imizuzu eyi-10 emva kwesidlo sakusasa kunye nesidlo sakusihlwa. Nangona kunjalo, ukugaya i-retinol kuxhomekeke kwisixa sevithamini E apho umzimba ufumana. Ithintela i-vitamin A ye-vitamin A kumathumbu kunye nezicubu. Ukugqitywa kwenkqubo yokumisa ingabakho ukusilela kwe-zinc.
Ukungabi novithamini A
Ukusilela kwale nzuzo inomzimba emzimbeni kunokukhokelela kwimiphumo emibi. Kukho izigaba ezintathu zokuphuhliswa kwe-avitaminosis:
- Kwinqanaba eliphambili, umsebenzi wezitho zangaphakathi ziphazamiseka. Akukho zibonakaliso ezibonakalayo ezibonwayo, kodwa umntu unokuziva ukuhlaselwa kwintsebenzo, ukunciphisa ithoni yomzimba kunye nokukwazi ukumelana nezifo zentsholongwane.
- Kwinqanaba lesibini, iimpawu zokunciphisa ukukhusela kumzimba zivela.
- Kwinqanaba lesithathu, izifo ezinxulumene nokusilela kakhulu kwe-retinol - i-pneumonia, i-bronchitis, i-sinusitis, umhlaza, umsebenzi wokuzala okhubazekile, ukunciphisa i-libido.
Ukuba umzimba awunayo i-vitamin A , isikhumba somile, imeko yamazinyo ibuhlungu, kwaye "ubumfama bobusuku" bukhula. Umntu uyaba nomdla, akasalali kakuhle, ngokukhawuleza uyathathala. Ukwandiswa kweziganeko zokungenwa kwe-enteric, i-cysts kwisibindi, ukuguguleka komlomo wesibeleko kunye nokukhathazeka kwabasetyhini. Amadoda anokujamelana neengxaki ezinxulumene nomsebenzi we-erectile.
Ukugqitha kwamavithamini A
Le meko ifumaneka nembonakalo yetyhefu enobuthi: ukuhlanza, isicathulo, intloko, ubuthathaka, ukwandiswa kwesibindi. Ngokuqhelekileyo, iimiphumo ezifanayo zibangelwa ngama-retinoids: ukutyhefuza nge-vitamin A ngexesha lokusetyenziswa kakubi kwezityalo zokutya ezizityebi kwi-carotenoids kwenzeka rhoqo. Nangona kunjalo, kukho isifo esinjenge-carotenic jaundice, apho ulusu luba luphuzi ngenxa yokusetyenziswa ngokugqithisileyo kokutya kwezityalo eziqukethe inani elikhulu le-beta-carotene.
I-Vitamin A - ingqinano
Ezi zibandakanya iimpendulo ezisisigxina kunye ne-hypothyroidism. Ukuthatha unyango oluqukethe iivithamini A, baya kuzisa ingozi xa i-retinol ekubunjweni kwayo iya kungena emzimbeni kunye nama-retinoids, apho kunye kunye kuya kuqinisa umphumo onobungozi. Amachiza anomzimba ngesiseko saso kufuneka asebenziswe kuphela ngokubonakaliswa kogqirha kunye nemilinganiselo echazwe ngokuthe ngqo, mhlawumbi isongela ukuphazamiseka kokukhula komntwana kunye nokukhubazeka kokuzalwa komzimba wamathambo omntwana.