arm sore after b12 injection Possible allergic reaction to injections?? : r/B12_Deficiency What happens if you inject

How Your Body Handles Vitamin B12 Your body needs to have a properly functioning pancreas, an unharmed stomach and intestines, and adequate levels of intrinsic factor, a protein that binds to vitamin B12 in the stomachonly then will you be able to absorb vitamin B12 as efficiently as possible

The Ottawa Hospital Sterne JA, Hernn MA, Reeves BC et al (2016) ROBINS-I: a tool for assessing risk of bias in non-randomized studies of interventions

This condition further reduces the stomachs ability to produce intrinsic factor-a protein needed to absorb vitamin B12 in the small intestine

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Most people get enough vitamin B12 in their diet, but a deficiency may occur in certain health conditions (such as poor nutrition, stomach/intestinal problems, infection, cancer)

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