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People with megaloblastic anemia, some gut problems, or malabsorption might need both
This can also help with acid reflux
[125] Storage and excretion [edit] How fast B 12 levels change depends on the balance between how much B 12 is obtained from the diet, how much is secreted and how much is absorbed
Some dont prefer this route as it requires a medical professional to administer
Women who are pregnant, planning to become pregnant, or breastfeeding should consult their obstetrician or primary care physician before considering any injectable supplement
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