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Issues like pernicious anemia and some gut problems can also cause it
Therefore, the results of these blood test need to be interpreted together with your symptoms
In fact, most people are able to get enough vitamin B12 through diet alone
Storage conditions that shorten unopened shelf life: heat (extended exposure above 25C), freezing and re-thawing (can crack the stopper seal), direct sunlight (degrades benzyl alcohol), and humid environments (can degrade label readability and obscure exp date)
Dalmasso, L
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