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Some people are unable to manufacture Intrinsic Factor, a condition called pernicious anemia, making it impossible to absorb Vitamin B12 from foods or oral supplements
The choice of B12 formulation should be guided by the individual patients needs and clinical presentation. Expert Consensus on B12 Therapy In summary, knowing the different B12 formulations and their dosing is key for managing B12 deficiency
After viral infections, it could affect various systems and delay full recovery
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