b12 injection mechanism of action Vitamin - an overview Frontiers | The combined use
Description
Optimising trace mineral status using an injectable supplement improves trace mineral and vitamin B12 status (better than oral supplements) at critical times

You just need to get calories in them even if it's in the form of Friskies

however, numerous side effects limit its use to evidenced cyanide poisoning
The risk of B12 deficiency is particularly relevant for patients following plant-based diets, those with existing digestive disorders, or individuals with genetic variants affecting nutrient absorption pathways

Several peptides inhibit this process at the enzymatic level
