Assertion: vitamin b12's amount | /r/HasProperty | absorbed
Facets:
value: from a single dose
type: OTHER
value: passively
type: MANNER
Source sentences:
text: Vitamin B12 tablets are available in high dosages far above the recommended dietary allowance, but these high amounts are not necessarily the amount that will be absorbed because an adequate amount of intrinsic factor is also needed.
text: Although this vitamin is absorbed by both facilitated and passive diffusion only trace amounts of vitamin B12 are passively absorbed, thus in order to have optimal absorption, facilitated diffusion that involves binding to intrinsic factor is required.
text: This is because only a limited amount of vitamin C can be absorbed from a single dose.