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How Can You Make Sure You're Getting Enough Vitamin B12

Sadly some people with "traditional P,A." either do not produce Intrinsic Factor or if they do, they also produce an antibody which destroys it and it is then called "Autoimmune Pernicious Anaemia"

Metformin, commonly prescribed for type 2 diabetes, is well-known to cause diarrhoea and is also associated with B12 deficiencymeaning patients may be taking both simultaneously

Holthof LC, van der Schans JJ, Katsarou A, Poels R, Gelderloos AT, Drent E, et al

2018;11:113-128 [PMC free article: PMC6001387] [PubMed: 29678421] 53

Animal studies show that vitamin B6 deficiency can decrease your antibody production and suppress your immune response