You or a caregiver should carefully monitor for these side effects, especially in the beginning of treatment and with dose changes
Best Time to Take Vitamin B12 Supplements The optimal timing for vitamin B12 supplementation depends on individual circumstances, the formulation used, and personal tolerance
This includes some heartburn medicines including proton pump inhibitors (PPIs) such as rabeprazole, omeprazole, esomeprazole, lansoprazole and pantoprazole
NMR analysis of Vitamin B12 conformational dynamics during intrinsic factor binding
This primarily stems from internal differences, like the amount of intrinsic factor released in the stomach or genetic defects (much like an MTHFR mutation)
There is no pill, supplement, or dietary change that lowers B12. You cannot flush excess B12 by drinking water or eating differently