The application of NICE guidelines outside of England varies: Scotland, Wales, and Northern Ireland: These parts of the UK have their own guideline development bodies (SIGN, TGCS, and BSG, respectively)
Same one whose nurse told me that there was nothing I could tell her about B12 as shed been to a lecture at Bath Uni and that at 400 post loading doses my levels were too high
4,5 Dietary insufficiency, pernicious anemia (i.e., an autoimmune process that reduces available intrinsic factor and subsequent absorption of vitamin B 12 1,2,6,7 ), and long-term use of metformin or acid-suppressing medications have been implicated in B 12 deficiency
B12 (Cobalamin) Vitamin B12 is essential for the production of red blood cells and maintaining healthy nerve function
They can also be injected into the hip, upper arm, or buttocks area