Ukondla umzimba wakho ngemisoco efanele kuyisihluthulelo sokuzivocavoca umzimba. Enye ebaluleke kakhulu? I i-vitamin D, okubalulekile ekwakheni nasekugcineni amathambo aqinile nanempilo. Futhi nakuba ziningi izindlela zokuthola uvithamini D (ovela elangeni, ekudleni okuthile, nasezithasiselweni), ucwaningo olusha lubonisa ukuthi kunezinhlobonhlobo ezakhini zofuzo zomzimba wakho ezingase zibikezele ukukhiqizwa kukavithamini D.
En isifundo, eshicilelwe kujenali ye-Nature Communications, abacwaningi bahlaziya i-genotype (izakhi zofuzo zomuntu), i-phenotype (izici zomzimba zomuntu ngenxa yofuzo) nolunye ulwazi lomtholampilo lwabantu abangu-417.580 ababhaliswe e-UK Biobank.
Abacwaningi bathola ukuthi kunezindawo ze-143 zofuzo ezixhunywe ekugxilweni kwe-vitamin D, i-137 ngaphezu kwalokho ababekwazi ngaphambi kwalolu cwaningo. Ngokusho kwabacwaningi, lezi zakhi zofuzo zingakha i-sunscreen yemvelo ezingeni lamangqamuzana, ivimbele ukukhiqizwa kukavithamini D.
«I-Vitamin D iyi-hormone yokukhanya kwelanga, futhi sidinga ukukhanya kwelanga okukhanyayo esikhumbeni sethu ukuze siyikhiqize, kodwa ukuhlukahluka kofuzo lwethu nakho kuthonya indlela esisebenza kahle ngayo ekwenzeni lokho.UJohn McGrath, umbhali ohlangene walolu cwaningo, esitatimendeni sabezindaba. «Okutholakele kwethu kusikisela ukuthi okuhlukile kofuzo ku-HAL (histidine ammonia lyase) kungase kuhluke ukugxiliswa kwe-molecule encane esikhumbeni esebenza njengesici sokuvikela ilanga sangaphakathi, noma i-SPF.".
«Le molekyuli encane imunca ukukhanya kwe-UVB, okuyizinto ezisetshenziswa imizimba yethu ukuze yakhe uvithamini D, nokuthi ungakanani esikhumbeni kuthinta ukuthi ungakanani uvithamini D esingawenza.” Sonke sinalezi zakhi zofuzo, zenza amaprotheni esikhumbeni, kodwa kukhona okuhlukile. Abanye abantu banokuhlukahluka okwenza i-sunscreen encane yangaphakathi, ngakho-ke kulula kancane kulaba bantu ukwenza uvithamini D.
Izakhi zofuzo zenza amaprotheni athonya uvithamini D ngezindlela eziningi ezahlukene. Singathola ukuhlukahluka kuma-enzyme akhiqiza futhi aphule uvithamini D kanye namaprotheni omthwali awuthwalayo. Ngaphezu kwalokho, kunezinhlobonhlobo eziningi zofuzo ezihlobene lipids nesikhumba ngakho-ke abonisa izici eziningi ezintsha ezithonya uvithamini D. Yebo, kusafanele ube nokukhanya kwelanga esikhumbeni sakho, noma izithako zomlomo, njll.
Kodwa ngenxa yokuthi imizimba yethu yenza lesi sikrini selanga semvelo akusho ukuthi ungakwazi ukweqa okhilimu belanga noma izifutho uma uzihambela nje. Ukuchayeka elangeni kuhlotshaniswa nomdlavuza wesikhumba, ngakho gqoka i-SPF enhle, ephakeme kune-SPF 50, uma usendaweni eqondile.
Kodwa uma usebenza endlini, into abaningi bethu abayenzayo, futhi awukutholi ukukhanya kwelanga okuningi, ngincoma isithasiselo. Uma usola ukuthi uyashoda ngale vithamini, bonana nodokotela wakho, ongakuhlola amazinga akho futhi akucebise ngokuthi ungakanani umsoco okufanele uwufake ekudleni kwakho.
Izimpawu eziyisi-6 ezikuqaphelayo ukuthi awunawo amavithamini