Assertion: vitamin b12's deficiency | /r/AtLocation | vegan
Facets:
value: without supplementation
type: MANNER
Source sentences:
text: Strict vegetarians or vegans – since vitamin B12 (cyanocobalamin) is found naturally only in animal foods a deficiency may occur in vegetarians and vegans without supplementation
text: since vitamin B12 (cyanocobalamin) is found naturally only in animal foods a deficiency may occur in vegetarians and vegans without supplementation People over 50 years – ageing causing less intrinsic factor to be naturally made (some people stop making it altogether) and less vitamin B12 (cyanocobalamin) may be absorbed