Tag: pernicious anemia

Chart showing vitamin B12 absorption efficiency declining sharply with dose increase, from 50% at 1 µg to 1.3% at 1,000 µg
ExplainersPerspectives

How vitamin B12 enters your body: two absorption pathways explained

Vitamin B12 enters your body through two distinct pathways: an efficient but saturable intrinsic factor route and a low-percentage passive…

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