The lack of vitamin B12 may result from any of the following conditions: Addisonian (pernicious) anemia this condition causes autoantibody formation against parietal cells, which results in a lack of IF essential for absorption of vitamin B12 from the intestine Malabsorption impaired absorption of vitamin B12 Gastrointestinal pathology, dysfunction, or surgery these include atrophic gastritis, celiac disease, small bowel bacterial overgrowth, pancreatic insufficiency, Helicobacter pylori infection, gastric carcinoma, and total or partial gastrectomy Diphyllobothrium latum and related species (the fish tapeworm) infestation these parasites compete with vitamin B12 for intestinal absorption
Those who have had bariatric surgery or other gastrointestinal procedures often have less stomach surface area available for vitamin absorption
Research Use Only Disclaimer Research Use Only: The materials and studies discussed in this article are presented solely for scientific and informational review
B12 Injection Benefits The NIH reports that in those with confirmed deficiency, B12 shots can have important benefits
we are assisting in your wellness journey
From the ASV table (Supplementary Table S1), sums of ASVs within each respective phylum or genus for each sample were calculated to establish the abundance of each phylum or genus per sample