Other possible causes of a vitamin B12 deficiency pernicious anemia prolonged use of certain medications, such as metformin following a strict vegan or vegetarian diet certain infections, such as with the tapeworm Diphyllobothrium latum celiac disease older age high intake of alcohol Other nutritional supplements may also benefit someone with Crohns disease
Unlike oral B12 supplements, which depend on intrinsic factor production in the stomach for absorption and lose 5070% bioavailability in the digestive process, injectable B12 achieves near-100% bioavailability by delivering the vitamin directly into circulation
International Regulations Other jurisdictions, like Canada, Australia, and the EU, have similar restrictions: In Canada , BPC157 is not approved by Health Canada and is not available through licensed pharmacies
From these values, it is clear that the ascorbate monoanion AscH can react with the tocopherol radical (-Toc-O ) to regenerate vitamin E (-Toc-OH) (Poprac et al