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With age, your stomach cells become less efficient and secrete less hydrochloric acid, which means you absorb less B12
It takes Nicotinamide (the raw material for NAD+) and methylates it, effectively removing it from the salvage loop
[30] This property allows the convenient preparation of cobalamin analogs with different substituents, via nucleophilic attack on alkyl halides and vinyl halides
Keep the vial tightly sealed
The level of active ingredients could be higher or lower than claimed and these ingredients could interact with other medications and foods
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