Olunye uphando lubonisa ukuba ukwandisa amanqanaba akho e-vitamin D kunokuncedisa ukunciphisa ingozi yomhlaza wakho. Ifumaneka kwifomu yokuncedisa, i-vitamin D iyimfuneko ye-vitamin edlala indima ebalulekileyo ekusebenzeni komzimba kwaye inceda ukunciphisa ukuvuvukala . Nangona uphando lwe-vitamin D kunye nokuthintela umdlavuza luye lwaveza iziphumo ezidibeneyo, kukho ubungqina bokuba abantu abanamazinga aphezulu e-vitamin D banokuthi banciphise umngcipheko weentlobo ezithile zomhlaza.
Okwangoku, ininzi yenkxaso yesayensi yegalelo le-vitamin D'inxaxheba ekukhuseleni umdlavuza ivela kwizifundo zokuqwalasela (uphando oluhlola iimpawu ezithile zendawo ethile). Ngokomzekelo omnye, umzekelo, abaphandi baphinde bahlalutya iimvavanyo ezingama-63 kwiingcambu ze-vitamin D kunye nomngcipheko wesifo somhlaza, kuquka umhlaza wekolon , umdlavuza webele , kunye nomhlaza wesifo somhlaza . Ngokwe-ingxelo, ezininzi zeengxelo zibonise ukuba abantu abanamanqanaba amaninzi e-vitamin D babenomngcipheko ongaphantsi komhlaza.
Inani leemvavanyo zekliniki (uphando oluvanya umphumo wonyango oluthile okanye ukungenelela kwezempilo) lujolise kwi-vitamin D kunye nomngcipheko womhlaza. Ngokomzekelo, olunye uphando lwabanika aba-1 179 abasetyhini abanempilo abangaphezu kweminyaka yobudala engama-55 ukuya kwelinye lamanyathelo amathathu:
- Elinye iqela lanikezwa i-1,400 ukuya ku-1,500 mg ye-calcium imihla ngemihla
- Elinye iqela linikezwa i-calcium kunye ne-1,110 IU ye-vitamin D
- Elinye iqela linikezelwe indawo
Emva kweminyaka emine, abo bathatha i-calcium kunye ne-vitamin D babonisa umngcipheko omkhulu kunabo bonke iintlobo zomhlaza, xa kuthelekiswa nalabo bathatha i-calcium kuphela okanye i-placebo.
Ngakolunye uhlangothi, ezinye izilingo zamachiza ziye zafumanisa ukuba ukuthatha izithako ze-vitamin D behlulekile ukunciphisa ingozi yomhlaza wesifuba kunye nomhlaza ongqambileyo-ezimbini zeendlela eziqhelekileyo zomhlaza eMelika.
Ngenxa yokungabikho kokuxhasa uphando, kungekudala ukuxelela ukuba ukuthatha isithako se-vitamin D kunokunciphisa ingozi yomhlaza.
Ngaloo nto, i-National Cancer Institute ayicebisi okanye isetyenziswe ngokusetyenziswa kwe-vitamin D isongezelelo ekunciphiseni umngcipheko woluphi uhlobo lomhlaza.
Nangona kunjalo, ekubeni ukugcina amazinga aphezulu e-vitamin D kubalulekile kwimpilo yonke, iingcali ezininzi zonyango zincoma ukwanda kwe-vitamin D. Nangona i-vitamin D ifumaneka kwezinye ukutya, njengeentlanzi ezinamafutha kunye nobisi oluqiniweyo, kwaye unokuveliswa ngumzimba ngexesha lokutshiswa kwelanga, ukuthatha izongezo kunokufumana iindlela ezithembekileyo zokuphucula ama-vitamin D.
Ukuba unomdla ekusebenziseni izithako ze-vitamin D ukukhusela umdlavuza wakho-okanye nayiphi na enye injongo yezempilo-xela ugqirha wakho malunga nokufumana isongezelelo esilungileyo. Kubalulekile ukuba uqaphele ukuba ukuzithobela imeko kunye nokuphepha okanye ukulibazisa ukunakekelwa okuqhelekileyo okanye amanyathelo okuthintela anokuba nemiphumo emibi.
Imithombo:
Chlebowski RT, Johnson KC, Kooperberg C, Pettinger M, Wactawski-Wende J, Rohan T, Rossouw J, Lane D, O'Sullivan MJ, Yasmeen S, Hiatt RA, Shikany JM, Vitolins M, Khandekar J, Hubbell FA; AbaPhicothi beeNkcazo zeMpilo yabasetyhini. "I-calcium kunye ne-vitamin D yokuxhaswa kunye nomngcipheko wesifo somhlaza." J Natl Cancer Inst. Ngo-2008 uNgo-19; 100 (22): 1581-91. Epub 2008 NgoNovemba 11.
I-Lappe JM, i-Travers-Gustafson D, i-Davies KM, iReker RR, i-Heaney RP. "I-Vitamin D kunye ne-calcium supplementation iyanciphisa umngcipheko womhlaza: iziphumo zolu vavanyo olungenamsebenzi." Am J Clin Nutrition. 2007 Juni; 85 (6): 1586-91.
National Cancer Institute. "I-Vitamin D kunye noKhuselo lweCarcer: Amandla kunye neMida yoBungqina". Juni 2010.
Ukuziphendulela: Ulwazi oluqulethwe kule ndawo lujoliswe kwiinjongo zemfundo kuphela kwaye alithathi indawo yeengcebiso, ukuxilongwa okanye unyango ngumgqirha onelayisenisi. Akunakuthetha ukukhusela zonke iindlela zokulondoloza, ukusebenzisana kwezidakamizwa, iimeko kunye nemiphumo emibi. Kufuneka uncede unyango lwangonyango ngokukhawuleza kuyo nayiphi na imiba yempilo uze ubonane nodokotela wakho ngaphambi kokusebenzisa elinye iyeza okanye wenze utshintsho kwi-regimen yakho.