vitamin b12 injection how often B12: Frequently Should I Get It? how often do you take

Increases cognitive and immune function and exercise performance

Thyroid function tests should be rechecked 68 weeks after initiation or dose adjustment, and annually once stable

Not sure what scientific backing they have for most of the claims made on their 'learn more' page - most of which looks biased at best - and really not sure where the claim that you will lose the effect of the shot more quickly if you drink more water comes from - never come across any studies that would imply that was true - it also claims that B12 isn't stored in the body and because it is water soluble which is definitely a load of twaddle

But which one works fastest

doi:doi:10.1161/STROKEAHA.118.023954 Kumano O, Akatsuchi K, Amiral J

(I self inject daily) During my first endoscopy, a biopsy confirmed my Pernicious anaemia