If your body cant absorb the vitamin through food and starts showing the symptoms of deficiency, your doctor might prescribe vitamin B12 shots
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[PubMed] [Google Scholar] 79.Ilic S., Drmic D., Franjic S., Kolenc D., Coric M., Brcic L., Klicek R., Radic B., Sever M., Djuzel V., et al
Especially if muscles are cold, so make sure you're in a warm room
doi: 10.1016/S0031-9384(03)00151-3
Les protines de transport, les transcobalamines , la transportent ensuite vers toutes les cellules de l'organisme et vers le foie