Tag: absorption
How vitamin B12 absorption works: two competing pathways explain why high-dose pills can rival injections
Vitamin B12 is absorbed via two pathways: intrinsic factor, which saturates at 1.5 µg per dose, and passive intestinal diffusion,…
Iron, folate, and B12: the three nutrients that build your blood
Iron, folate, and vitamin B12 form an integrated physiological network essential for red blood cell production and oxygen transport. Deficiency…
Why High-Dose Vitamin B12 Supplements Work Despite Poor Absorption
Research reveals how vitamin B12 supplements overcome absorption limitations through a backup pathway. While efficiency drops dramatically at high doses,…
Popular Magnesium Absorption Charts May Overstate Supplement Differences, New Research Shows
New research challenges popular magnesium absorption charts, showing only 2-3% difference between premium citrate and basic oxide forms once stores…
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