Kulabo abaziqeqesha elangeni noma bathathe izithasiselo ezengeziwe, i i-vitamin D kungakhuphula isisindo somzimba wakho omncane, noma kuyasikisela ucwaningo lwakamuva.
Ishicilelwe ku-Annals of Nutrition & Metabolism, ucwaningo lufuna ukucacisa ukuthi unyaka owodwa wokwengezwa kwevithamini D uzoba nomthelela olinganisekayo ekwakhiweni komzimba kanye namazinga okuqina kubantu abadala abanempilo.
Abacwaningi baseShayina naseJapane baqasha ababambiqhaza abangu-95, banikeza ingxenye yabo engu-420 IU kavithamini D3 nsuku zonke unyaka, kuyilapho enye ingxenye yathola i-placebo. Ekupheleni konyaka, isisindo somzimba omncane kanye nephesenti lamafutha omzimba aqhathaniswe nedatha ekuqaleni konyaka. Baphinde bahlola ukuqina komzimba besebenzisa amandla okubamba isandla, amandla okunweba umlenze, nokufaneleka kwenhliziyo.
Bathole ukuthi abathathe isithasiselo babenakho ukwanda okukhulu kwesisindo somzimba omncane, ebalwa ngokukhipha amafutha omzimba esisindweni somzimba esiphelele, kuyilapho iqembu le-placebo lingashintshile. Kuwo womabili amaqembu, awukho umehluko ophinde wabonwa ngezilinganiso ezingenhla zokuqina komzimba.
Uvithamini D uyithinta kanjani imisipha yethu?
Imiphumela kungenzeka ngoba imisipha yamathambo ine-receptors ye-vitamin D ezisiza ukulawula ukusebenza kwemisipha nokusebenza, njengoba kuphakanyiswe ucwaningo lwangaphambilini.
Nakuba lolu cwaningo oluthile luphethe ngokuthi kwakungekho shintsho emandleni emisipha nge-vitamin D, ezinye izifundo ziye zaphakamisa ukuthi ukuthuthukiswa kwesisindo somzimba omncane kungase kuthuthukise ukusebenza kwemisipha jikelele. Isibonelo, ucwaningo lwango-2017, olushicilelwe kumagazini i-PLOS One, lwaphawula lokho kukhona ukuxhumana phakathi kwamazinga aphansi kavithamini D nokulahlekelwa amandla emisipha, ikakhulukazi kubantu abadala. Olunye ucwaningo ephephabhukwini i-Bone Reports lwathi uvithamini D sekuyisikhathi eside kuthiwa unemiphumela emihle empilweni yamathambo, kodwa manje uqashelwa ngokwandayo ngendima yawo ekusebenzeni kwemisipha, ikakhulukazi ngobuhlungu bemisipha nobuthaka.
Noma izengezo Zingaba usizo ezinyangeni zasebusika kubantu abahlala ezindaweni ezibandayo noma ezindaweni ezisenyakatho, kuyafaneleka futhi ukuthola uvithamini D ngendlela etholakala kakhulu: Ilanga.
Siyaqhubeka nokufunda kabanzi mayelana ne-vitamin D nezinzuzo zayo. Amazinga aphansi aziwa ngokuthi ahlotshaniswa nayo yonke into kusukela ebuthakathakeni benhliziyo nemithambo yegazi kuya ekunciphiseni ukusebenza kwamasosha omzimba. Uma ushisa ilanga, ngendlela enengqondo, maningi amathuba okuba nawe ube njalo. sebenza kakhulu, ngakho-ke kuyinzuzo ephindwe kabili.
Uma ukhetha izithasiselo, kusenenkulumompikiswano mayelana nokuthi udinga uvithamini D ongakanani nsuku zonke. Inani elinconyiwe lansuku zonke ngu-600 IU, kodwa i-Endocrine Society iphakamisa ukuthi kudle amazinga aphezulu kakhulu we-1.500 kuya ku-2.000 IU ngosuku.
Ngaphezu kokuthola okuningi, bheka ukudla njenge-swordfish, i-salmon, i-tuna, ubisi, iyogathi, amaqanda, noshizi ukuze uthole i-vitamin eyanele. Uma ukhathazekile ngokuthi ungase ube nokushoda ngandlela-thile, kuyatuseka ukuthi amazinga akho ahlolwe emzimbeni wakho olandelayo, njengoba ukuhlolwa kwegazi kuwukuphela kwendlela yokwazi ngokuqinisekile. Xhumana nodokotela wakho ngaphambi kokuthatha noma yisiphi isithasiselo, futhi.