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In practice, injections are used when rapid correction or assured absorption is needed
Methylcobalamin is the active forms of B12, leading to greater overall benefits
Doses below 0.1mL (10 units) become difficult to measure accurately on standard syringes
Like B12 injections
GI disorders like celiac disease and inflammatory bowel disease (IBD) reduce the bodys ability to absorb and maintain healthy B12 stores
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