But over time, such deficiency may cause anemia, nerve damage, and even problems with memory and reasoning
First, when you take a pill, it has to be digested and metabolized through the liver or kidney through what is called the first-pass effect
The EFSA notes, The inherent uncertainty of this [factorial] approach is reflected in the wide range of cobalamin intake calculated to compensate for estimated daily losses, depending on the assumptions taken (EFSA, 2015). Appendix D
There was no blinding, there was no control group, and there were no validated questionnaires
These reactions are common to nearly all injectable peptides and typically resolve within 24 to 48 hours