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Always check the expiration date on your vial
This may be because the ability to absorb vitamin B12 effectively Other factors Risk factors for having a vitamin B12 deficiency may include: high alcohol intake AIDS some inherited conditions How much vitamin B12 do I need
They are especially added in multi-dose growth hormone vials to safeguard product sterility after recurrent use
For many others, high-dose oral B12 works just as well (NIH ODS
Researchers should follow established storage protocols
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