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
Its also a useful longevity tool for supporting long-term weight management
J., Koliwad, S., Harris, C
Research community discussions often mention 50 to 150 mg per day by mouth and 2.5 to 5 mg per day by subcutaneous injection
It also helps restore red cell production when the cause is B12 deficiency
Until rigorous studies show that BPC-157 does not awaken any sleeping dragons (like micrometastases), its best viewed with deep skepticism