The liver stores significant amounts of B12, providing a reserve that can last several months to years, depending on the individual's metabolic needs and the severity of prior deficiency
The Need for Flexibility and Patient Advocacy The Pernicious Anaemia Society: As you noted, the work of the Pernicious Anaemia Society is crucial in highlighting these issues
Supplementation aside, you should always aim to get the majority of your nutrients from food sources, but when it comes to vitamin B12, that's definitely easier said than done, especially for those following plant-based diets free of all animal products
You must maintain reasonable controls against diversion and unauthorized access
A bactericidal agent kills
B12 injections are very safe when given by a trained clinician using sterile technique