Kana uchida kuwana vitamini D kuwedzera, unogona kuona zvingasarudzwa zviviri pane mashefu: D2 uye D3. Iyi ndiyo miviri yemavhithamini D. Kana ndaifanira kutora mavitamini D kuwedzera, ndaizotamira kune D3, asi zvingasava nezvakawanda-shure kwezvose, D2 yakashandiswa kwemakore akawanda.
Vitamini D inoshanda sehomoni inobatsira muviri wako kugamuchira nekushandisa calcium uye kutarisira kuwanda kwemaricisi muropa rako.
Kana iwe usingakwanisi kuwana vitamini D yakakwana, iwe uchawedzera dambudziko rako re osteoporosis kana zvimwe zvirwere-zvinokonzera kufanana naOsteomalacia uye osteopenia. Vitamin D inokoshawo kune utachiona hwehutano hwakanaka uye hutano hwemagetsi nemasumbu.
A Vitamin D Muduku Dzemagetsi
Cholecalciferol (iyo D3) ndiyo maitiro e vitamin D inowanikwa mumhuka. Apo ganda rako rinoratidzika kune maziso ezuva reVBB, muviri wako unoshandura chimwe chinhu chinonzi 7-Dehydrocholesterol kuburikidza nezvikamu zvakasiyana-siyana zvehupenyu hwechiocalciferol. Zvadaro kuburikidza nedzimwe nhanho, cholecalciferol inoshandurwa ku calcifediol, iyo inonziwo 25-hydroxyvitamin D3 uye ndiyo iyo iyo laboratory inoyera apo chiremba wako anorayira kuedza kwe vitamin D.
Pakupedzisira, muviri wako unoshandura calcifediol mumuviri unoshanda wa vitamini D (iyo inobata basa) inonzi calcitriol.
Zvirimwa zvinopinda nenzira yakafanana, asi pane cholecalciferol, michero ine ergocalciferol (D2).
Cholecalciferol uye ergocalciferol zvakafanana zvikuru nemakemikari uye kuma1920 apera, yakawanikwa kuti ergocalciferol yakabatsira pakurapa zvikwereti muvana. Kwemakumi emakore, ergocalciferol yakagamuchirwa sevhuwandu hwevhitamini D.
Muma1980 uye '90s, masayendisiti akaratidza kuti chimiro chemhuka, D3, chaive chakakosha mukurera ropa mavitamini D3 (25-hydroxyvitamin D3).
Kubvira ipapo zvidzidzo zviviri zvakawana kuti hapana misiyano pakati pemhando mbiri uye chechitatu chakaona kukurumidza kukurumidza kuwedzera neD3 kuwedzera, asi vatsvakurudzi vakanga vasina kujekesa kana zvakagadzira kusiyana kukuru kwerapeutically.
Sei zvidzidzo zvine mhinduro dzakasiyana zvakadaro? Zvinhu zvakawanda zvinogona kuchinja zvidzidzo zvekutsvakurudza zvemufananidzo uyu. Chimwe chidzidzo chakaitwa muzhizha kuitira kuti zuva rive rakasviba raigona kunge rakanganisa mhinduro. Uye zvichida kudya uye kushandiswa kwezvokudya zvinowedzera zvinogona kuchinja zvinhu. Kunyanya ndianiko boka rakanakisisa revanhu kuti vadzidze? Varwere vane osteoporosis? Chirwere chepyiyo? Vanhu vane hutano, avo vangangodaro vari vashoma mu vitamini D? Vanhu vakwegura? Vechidiki? Varume? Vakadzi? Kutsvakurudza kunogona kuva kwakaoma nokuti zvakawanikwa kune boka rimwe revanhu zvakafanana kune rimwe.
Ndine chokwadi chekuti kutsvakurudza kuchaitwa pane kusiyana pakati peD2 neD3. Asi panguva ino, kana iwe uine hanya nehuwandu hwevhitamini D yako , chinhu chakanakisisa chaunofanira kuita ndechekupa mutano wehutano kuitira kuti ropa rako re vitamin D riongororwe. Kana vakaderera, unogona kutora chero mavhitamini D uye shure kwemavhiki mashomanana, ita ropa rako riongororwe zvakare kuti uone kana zvigadziridzo zviri kushanda.
Nguva dzose tevera mazano ekutora vitamin D kuwedzera kunze kwekuti mushandi wako wehutano anokuudza zvakasiyana.
Sources:
Armas LA, Hollis BW, Heaney RP. "Vitamin D2 haina kunyanya kushanda kupfuura vitamin D3 muvanhu." J Clin Endocrinol Metab. 2004 Nov; 89 (11): 5387-91.
Glendenning P, Chew GT, Seymour HM, Gillett MJ, Goldswain PR, Inderjeeth CA, Vasikaran SD, Taranto M, Musk AA, Fraser WD. "Serum 25-hydroxyvitamin D mazinga mu vitamini D-haakwanikwi kuputika kwechipembenene varwere mushure mekuwedzera pamwe ne ergocalciferol uye cholecalciferol." Bone. 2009 Nov; 45 (5): 870-5.
Holick MF, Biancuzzo RM, Chen TC, Klein EK, Young A, Bibuld D, Reitz R, Salameh W, Ameri A, Tannenbaum AD. "Vitamin D2 inoshanda se vitamin D3 mukuchengetedza kupararira kwema 25-hydroxyvitamin D." J Clin Endocrinol Metab. 2008 Mar; 93 (3): 677-81.
NIH Ofisi Yezvokudya Zvokudya. "Dietary Supplement Fact Sheet: Vitamin D."