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This is in stark contrast to ConsumerLab
It is also available in supplements, especially for highly deficient individuals and those who are at risk of deficiency
Cost-effectiveness appeals to many users, as a months supply of oral B12 typically costs $5-20 depending on formulation and quality
19 Early studies: There were studies in the 1950s and the1960s that showed that oral vitamin B 12 could be absorbed by patients with pernicious anemia and could lead to resolution of the anemia
PMID 19891010
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