Vitamin D imhuri yezvikafu zvine zvakafanana muchimiro chemakemikari. Mavhitamini D2 uye D3 anowanikwa kubva mukudya. Mhando mbiri idzi dzinobatsira kusangana nevhitamini D zvinodiwa. Pane misiyano inokosha pakati pavo. “Kusiyana pakati pevhitamini D2 uye D3 sei?"
Kusiyana pakati pevhitamini D2 uye D3
Zvidzidzo zvinoratidza kuti vhitamini D2 hainyanyi kushanda pakusimudza mazinga eropa kupfuura vhitamini D3.
Vitamin Dine mafomu makuru maviri:
- Vitamin D2 (ergocalciferol)
- Vitamin D3 (cholecalciferol)
Kusiyana pakati pevhitamini D2 uye D3 zviri sezvinotevera;
Vitamin D3 inobva kumhuka uye vhitamini D2 inobva mumiti.
Iyo miviri miviri yevhitamini D inosiyana neyekudya masosi. Vhitamini D3 inongowanikwa muzvikafu zvinobva kumhuka, nepo vhitamini D2 ichinyanya kuwanikwa muzvirimwa uye zvikafu zvakasimbiswa.
Zvinyorwa zvevhitamini D3 zvinosanganisira;
- Hove dzine mafuta nemafuta ehove
- Chiropa
- Yai yolk
- ruomba
- Zvinovaka muviri zvinovaka muviri
Vitamin D2 masosi ndeaya anotevera;
- Howa (akakura muUV mwenje)
- Zvokudya zvakasimbiswa
- Zvinovaka muviri zvinovaka muviri
Nekuti vhitamini D2 yakachipa kugadzira, iyi ndiyo yakajairika fomu inowanikwa muzvikafu zvakasimbiswa.
Vitamin D3 inoumbwa muganda
Ganda redu rinogadzira vhitamini D3 kana rakafumurwa nechiedza chezuva. Kunyanya, ultraviolet B (UVB) mwaranzi kubva kuchiedza chezuva inokonzeresa kuumbwa kwevhitamini D7 kubva mukomboni 3-dehydrocholesterol muganda.
Nzira yakafanana inoitika mumiti uye fungi, apo chiedza cheUVB chinokonzera kuumbwa kwevhitamini D2 kubva kuergosterol, musanganiswa unowanikwa mumafuta emiti.
Kana iwe uchipedza nguva uri kunze kwevhiki nevhiki, pasina sunscreen, unogona kubudisa vhitamini D yose yaunoda.
Asi chenjerera kupedza nguva yakawandisa muzuva pasina sunscreen. Izvi zvinonyanya kukosha kune avo vane ganda rakanaka. Kupisa kwezuva chinhu chakakosha chengozi yegomarara reganda.
Kusiyana nevhitamini D inotorwa nemishonga inovaka muviri, hauzosangana nekuwedzeredza nevhitamini D3 inogadzirwa paganda. Nokuti kana muviri watova nezvakakwana, ganda rinobudisa zvishoma.
Vitamin D3 inoshanda zvakanyanya
Mavhitamini D2 uye D3 haana kufanana kana zvasvika pakusimudza mazinga evhitamini D. Ose ari maviri anonyatso kunyudzwa muropa. Zvisinei, chiropa chinoamisa nenzira yakasiyana.
Chiropa chinogadzirisa vhitamini D2 kusvika 25-hydroxyvitamin D2 uye vhitamini D3 kusvika 25-hydroxyvitamin D3. Aya makomisheni maviri anozivikanwa pamwe chete secalcifediol.
Calcifediol ndiyo inonyanya kutenderera fomu yevhitamini D, uye mazinga eropa anoratidza zvitoro zvemuviri zvezvikafu izvi.
Vitamin D2 inoburitsa calcifediol shoma pane yakaenzana yevhitamini D3. Zvidzidzo zvakawanda zvinoratidza kuti vhitamini D3 inoshanda kupfuura vhitamini D2 pakusimudza mazinga eropa ecalcifediol.
Kana uri kutora vitamini D kuwedzera, unogona kutora vhitamini D3.
Masayendisiti akaratidza kushushikana kuti vhitamini D2 yekuwedzera inogona kunge iri yemhando yakaderera pane D3 yekuwedzera.
Muchokwadi, ongororo dzinoratidza kuti vhitamini D2 inonyanya kunetseka nekushanduka kwehunyoro uye tembiricha. Ichi ndicho chikonzero vhitamini D2 yekuwedzera inowedzera kuderera nekufamba kwenguva.
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