Might also be worth going armed with evidence and guidelines, since many GP's do not know about this and are often reluctant to offer it to sufferers (I know mine was)
7 juli 2025 Boek, papier en fotografisch materiaal (BPF) Nationaal Centrum Erfgoedopleidingen - Enqute bijscholingsmodules voor restauratoren 26 juni 2025 Schilderijen De nieuwe RN commissie: Nederlands voor Restauratoren Dutch for Conservators
Risk factors that should prompt consideration of B12 deficiency include advancing age (reduced stomach acid production), strict vegan or vegetarian diets, pernicious anaemia, gastrointestinal surgery (particularly gastric bypass or ileal resection), long-term use of certain medications (metformin, proton pump inhibitors, H2-receptor antagonists), nitrous oxide exposure (including recreational use), and conditions affecting the gut such as Crohn's disease or coeliac disease
However, this clinical history does not extend any licensed status to the 10mg lyophilised research format, which is supplied strictly for laboratory investigation only
In the duodenum (the first part of the small intestine), pancreatic enzymes strip vitamin B12 away from the R-binders
