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Pregnant or breastfeeding women who suspect B12 deficiency should have their levels tested by their prenatal care provider, who can recommend the appropriate supplementation route and dosage
Blood studies can reveal your baseline levels before starting any injection protocol
Since your body only absorbs a small amount at once, excess B12 just gets flushed out
Elevated serum B12 values in serious conditions Maybe the concern for a possible overdose is caused by the knowledge that some life-threatening diseases can be accompanied by a strong increase in the B12 blood value, in some cases to even 30 times the upper reference value
Adequate maternal intake is important for both the mother and infant during nursing, and maternal requirements for vitamin B12 increase during lactation
