b12 injection painful How to Give Injections at Home to Yourself · PA Relief A vitamin B12 deficiency was

Certain medications , including acid reducer medication which interferes with B12 absorption and oral contraceptives

doi: 10.3390/biom12020197, 113

Beef provides vitamin B12 naturally, but absorption depends on digestion, the presence of intrinsic factor and intestinal function

Taking omeprazole can limit your bodys absorption of vitamin B-12, which can lead to deficiencies

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