which is better vitamin b12 injection or tablet Injections: Good Bad? Do B12 Injections Work for

Unfortunately, some patients have difficulty absorbing an adequate amount of vitamin 12 because they do not produce enough stomach acid due to a condition called autoimmune atrophic gastritis which can cause a deficiency of vitamin B12

van Hall G

This crucial nutrient plays a pivotal role in various immunological processes, critical to our bodys normal function and growth

For me that was more than 2 or three drinks at the point of deficiency

If you have a temporary deficiency or increased requirement (say, after a surgery or during recovery from an acute illness), you might only need a short course, perhaps a few weeks of injections, until your vitamin levels normalize or you can meet your needs by mouth again