IVithamini D inceda umzimba wakho ukuba ufunxe icalcium kwaye ugcine amathambo omelele ubomi bakho bonke. Umzimba wakho uvelisa iVithamini D xa imisebe yelanga ye-UV ichukumisa ulusu lwakho. Eminye imithombo elungileyo yale vithamini ibandakanya iintlanzi, amaqanda kunye neemveliso zobisi eziqinisiweyo. Ikwafumaneka njengesongezelelo sokutya.

I-Vitamin D kufuneka idlule kwiinkqubo ezahlukeneyo emzimbeni wakho ngaphambi kokuba umzimba wakho uyisebenzise. Utshintsho lokuqala lwenzeka esibindini. Apha, umzimba wakho uguqula i-vitamin D ibe yikhemikhali eyaziwa ngokuba yi-25-hydroxyvitamin D, ekwabizwa ngokuba yi-calcidiol.

Uvavanyo lwe-25-hydroxy vitamin D yeyona ndlela ilungileyo yokujonga amanqanaba e-vitamin D. Ubungakanani be-25-hydroxyvitamin D egazini lakho luphawu oluhle lokuba umzimba wakho unalo i-vitamin D engakanani na. Uvavanyo lunokumisela ukuba amanqanaba e-vitamin D yakho aphezulu kakhulu okanye aphantsi kakhulu.

Olu vavanyo lukwaziwa ngokuba luvavanyo lwe-25-OH vitamin D kunye novavanyo lwe-calcidiol 25-hydroxycholecalcifoerol. Lungaba luphawu olubalulekileyo lwei-osteoporosis(ubuthathaka bamathambo) kunyeii-rickets(ukukhubazeka kwamathambo).

Ugqirha wakho unokucela uvavanyo lwe-25-hydroxy vitamin D ngezizathu ezahlukeneyo. Lunokubanceda bafumanise ukuba i-vitamin D eninzi okanye encinci kakhulu ibangela ubuthathaka bamathambo okanye ezinye iingxaki. Lunokubeka esweni abantu abasengozini yokuba ne-25-hydroxy vitamin D.ukunqongophala kwevithamini D.

Abo basengozini enkulu yokuba namanqanaba aphantsi e-vitamin D baquka:

• abantu abangafumani thuba lininzi lokuchatshazelwa lilanga
• abantu abadala
• abantu abatyebe kakhulu
• iintsana ezincanciswa ibele kuphela (ifomyula idla ngokuqiniswa ngevithamini D)
• abantu abaye benza utyando lwesisu
• abantu abanesifo esichaphazela amathumbu kwaye senza kube nzima emzimbeni ukufunxa izondlo, ezifanaIsifo sikaCrohn

Ugqirha wakho angafuna ukuba wenze uvavanyo lwe-25-hydroxy vitamin D ukuba sele ekufumanise ukuba unesiphene se-vitamin D kwaye ufuna ukubona ukuba unyango luyasebenza na.