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Ask yourself: Do you often feel tired or mentally foggy? Are you a vegetarian/vegan? Do you have absorption issues or anemia? Are you over 50? If you answered yes to any of these, its worth checking your B12 levels
Hardy TJ
Plant Cell 17 , 21232137 (2005)
Patients often start with an intensive "loading phase," which can mean daily or every-other-day injections for a week, then weekly shots for a month
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