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Some plant-based foods are fortified with B12
Once a vial has been accessed, it should be refrigerated and used within 28 days
Its usually ideal for delivering systemic effects
Do not shoot the water directly at the lyophilized powder
8,15 Serum holotranscobalamin level, which is reduced in vitamin B 12 deficiency, compared favorably with homocysteine and methylmalonic acid levels as a confirmatory test in one study, but further trials are needed before its widespread use for this purpose can be recommended
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