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Preventing Contamination: The 28-day limit is a safety measure
Although vitamin B12 tablets are sold in large dosages well beyond the recommended dietary limit, these quantities do not guarantee that the total portion will be absorbed because sufficient amounts of intrinsic factors are also required
For powder handling, researchers should minimize dust generation, avoid skin and eye contact, avoid inhalation, and use appropriate containment and personal protective equipment according to the institutions chemical hygiene plan
Minimizes unwanted water gain
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