Assertion: spinach's oxalate | /r/CapableOf | block absorption of calcium and iron
Facets:
value: in the stomach
type: LOCATION
value: in small intestine
type: LOCATION
Source sentences:
text: Although spinach is touted as being high in iron and calcium content, and is often served and consumed in its raw form, raw spinach contains high levels of oxalates, which block absorption of calcium and iron in the stomach and small intestine.