doi:10.1517/14712598.2012.634793 Esposito S, Deventer K, Goeman J, Van der Eycken J, Van Eenoo P
Multiple forms of the transcobalamin transport molecule exist the one that is important here is transcobalamin II, as it allows B12 to become biologically available
This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation
A: Store the product in a cool and dark place