how many b12 injections are needed Vitamin A Vitamin B12 injection is a quick shot that gives your body vitamin B12 directly into the muscle. This helps your body absorb it faster than tablets. Vitamin B12 helps Vitamin B12 Injections - Vie

People taking certain common medications including metformin for blood sugar management and proton pump inhibitors for acid reflux also face increased deficiency risk

National Human Genome Research Institute

For most patients, a weekly B12 shot for the first four weeks rebuilds depleted B12 levels, followed by maintenance shots every two to four weeks

You may have a vitamin B12 deficiency

Lost 7 lbs with limited diet modification Package and Presintation was perfect Im not as tired but I still have food cravings

NICE and BNF Guidance: You correctly point out that even official guidance from NICE and the BNF acknowledges that some individuals may require more frequent injections