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what is the dose of injection vitamin b12 CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL B12 Shots at Home: How,
Description
Adequate choline intake increases to 450 mg/day during pregnancy

But different products have different amounts
My symptoms were coming back gradually, so I did not notice too much, but last year some of the neurological symptoms came back

The temporal association with starting B12 supplementation may simply reflect chance occurrence rather than causation
