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Instead of daily micrograms, you take milligrams weekly
Keep vials in the original box or wrapped in foil if your refrigerator has interior lighting
Deficiency can cause: Megaloblastic anemia Fatigue Neurological issues Numbness Tingling of hands and feet Impaired balance Memory loss Despite most adults getting plenty of B-12 from their diet, B-12 deficiencies affect about 1.5% - 15% of the general population, in particular older adults and those with gastrointestinal disease
Either it's underdosed, impure, or fake
Any failure means discard
& Loscalzo, J
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