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If you discover that you are B12 deficient, your doctor will determine how much extra B12 you need, as well as which supplement will work for you
One would surely argue that some groups are more at risk for B12 deficiencies and could, therefore, benefit from injections: vegetarians and vegans have impaired B12 absorption due to changes from diet, while older adults have changes due to aging
This material is a lyophilized Chemical Reference Standard designed strictly for Isolated Cell Culture Protocols
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Maximum: Up to ~500 mcg/day
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