Isikrini Esilungile Esisha Esilula Ukungenisa Uvithamini D

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Uyazi ukuthi i-sunscreen iyadingeka ngokuphelele ekuvikelweni komdlavuza wesikhumba nokulwa nokuguga. Kodwa okunye okubi kwe-SPF yendabuko ukuthi iphinde ivimbele ikhono lomzimba wakho lokucwilisa uvithamini D owuthola elangeni. (Qiniseka ukuthi awuweli ngalezi zinganekwane ze-SPF udinga ukuyeka ukukholwa.) Kuze kube manje.

Abacwaningi abavela e-Boston University Medical Center benze indlela entsha yokwenza isikhilimu selanga esizokuvikela kokubili emisebeni eyingozi kuyilapho sisavumela umzimba wakho ukuba ukhiqize uvithamini D. Indlela yabo ichazwe kujenali. I-PLOS eyodwa. Amakhilogremu amaningi okuvikela ilanga okwamanje emakethe avikela emisebeni ye-ultraviolet A nemisebe ye-ultraviolet B, yokugcina oyidingayo ukukhiqiza uvithamini D.

Ngokushintsha ama-chemical compounds, abacwaningi bakha i-Solar D (esivele idayiswa e-Australia libalele) ngenhloso yokusiza abantu ukuthi bathole i-vitamin D yemvelo eyengeziwe nsuku zonke. (Cishe amaphesenti angu-60 ethu akanawo uvithamini D okwamanje, okusibeka engcupheni yokucindezeleka futhi kwandisa amathuba ethu okuthola izinhlobo ezithile zomdlavuza.) Ifomula yeSolar D-okumanje eyi-SPF 30-ikhipha eminye imisebe ye-ultraviolet. Ama-B-blocker, avumela isikhumba sakho ukuthi sikhiqize amaphesenti angama-50 ngaphezulu kavithamini D.

Inkinga ukuthi, ukuvimba imisebe ye-UVB kuyinto enhle kakhulu. Imisebe ye-UVB iyisizathu sokuthi uthole ukushiswa yilanga, futhi idala ukuguga ngaphambi kwesikhathi kanye nomdlavuza wesikhumba. ISolar D isakuvikela kuyo iningi wemisebe ye-UVB yelanga kodwa ivumela ubude beza obuthile bokukhanya ukuthi bufinyelele esikhunjeni sakho ukuze kuqale inqubo yokuhlanganiswa kwevithamini D.

Abanye ochwepheshe bayangabaza. "Kuthatha imizuzu embalwa nje yokushiswa yilanga emzimbeni wakho ukukhiqiza uvithamini D owudingayo nsuku zonke," kusho uSejal Shah, M.D ongudokotela wesikhumba eNew York City. "Ukuvezwa ngokweqile kwe-ultraviolet empeleni kungabulala phansi uvithamini D emzimbeni wakho."

Ingabe ukuthola ama-vitamin D ambalwa akhiqiza imisebe kuwufanele ubungozi bokulimala kakhulu kwelanga lapho uphuma ekubambeni imisebe usuku lonke? Mhlawumbe akunjalo, ngokusho kuka-Shah. “Ekugcineni kuphephe kakhudlwana ukuthatha isithasiselo sikavithamini D kunokuba uzichaye ekukhanyeni kwelanga kakhulu,” usho kanje. Thola ukuthi ungayikhetha kanjani i-vitamin D engcono kakhulu yokwengeza. Uma ukhathazeke ngokweqile ngokuntuleka kwevithamini D, khuluma nedokhumenti yakho.

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