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When Injections Become Necessary The normal dose of B12 injection is important for treatment
Oral B12 absorption is not a fixed percentage
Some research from Germany has shown that an even higher threshold (over 500 pg/mL) is necessary in early-to-mid pregnancy to maintain vitamin B12 levels throughout pregnancy, lactation, and to support an infants vitamin B12 status (via breast milk) through 6 months of age
J Clin Endocrinol Metab
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