can you get vitamin b12 injections when pregnant & Pregnancy: A nutrient crucial for your baby's health 6 best vitamin B12 supplements
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But should you actually use 10%

doi: 10.1177/0883073815583688

If the body properly uses B12, studies show it can stay in the body for up to five years

Your doctor may recommend reducing or stopping B12 supplementation, then retesting in 4 to 8 weeks
