[110] Animals can convert cyanocobalamin and hydroxocobalamin to the bioactive forms adenosylcobalamin and methylcobalamin by enzymatically replacing the cyano or hydroxyl groups
However, increasing oral supplement doses (within safe limits) while awaiting medical review is generally considered safe, as B12 has very low toxicity and excess is excreted through the kidneys
If your levels drop, you might feel sluggish, even with good rest
The peptide releases directly into the gastric environment where it can exert local protective effects before degradation occurs
Sattar N, Gaw A, Scherbakova O, Ford I, OReilly DSJ, Haffner SM, Isles C, Macfarlane PW, Packard CJ, Cobbe SM, Shepherd J