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This type of anemia is caused by a lack of the intrinsic factor needed to support red blood cell production
(2022) Vitamin B12: A review of clinical use and efficacy
These are rare at the doses used in supervised clinical care and when they occur, they're typically mild and transient
For oral cobalamin supplementation: Protocol: Daily administration for a total of 12 weeks and re-check the serum cobalamin concentration 4 weeks after stopping supplementation
The peptide contacting gut tissues directly may produce benefits regardless of systemic absorption levels
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