allergic to b12 injections Possible reaction injections?? : r/B12_Deficiency allergic reaction to vitamin b12

Higher Bioavailability : Injections provide higher bioavailability of B12 because the vitamin is delivered directly to the bloodstream, ensuring maximum absorption

DDA, Data Dependent Analysis algorithm

It had limited food-supplement GRAS history in some jurisdictions but Australia's TGA placed it on Schedule 4 (prescription) in 2020

MRC Vitamin Study Research Group

Borrows (not his real name) also made a poor first impression when he insisted that people with B12 deficiency can easily be treated with oral supplementation, as 1% of an oral dose is taken up in the body by a process called passive absorption

The patients blood may have returned to normal but that might not mean that they would do as well on tablets as they did on injections