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You have no B12 deficiency symptoms
The efficacy of these products has not been confirmed by FDA-approved research
[95] [19] [96] The amount of cyanide in cyanocobalamin is generally not considered a health risk, since even in a 1,000 g dose, the 20 g of cyanide it contains is less than the daily consumption of cyanide from food
These include: Anaphylaxis : A severe, life-threatening allergic reaction that needs immediate help
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