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It is important to distinguish between evidence-based B12 replacement therapywhich is well-established for treating documented deficiencyand the use of lipotropic combinations, which lack robust clinical validation
Absorption of B12 is complex, requiring intrinsic factora glycoprotein secreted by gastric parietal cellsto facilitate uptake in the terminal ileum
Doctronic offers free AI doctor visits that help patients understand medical diagnoses and prepare informed questions for their healthcare providers
doi:10.1351/pac199365061113
This scenario is common, because the standard B12 blood test doesnt tell us nearly as much as doctors think it does
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