Assertion: vitamin b12's role | /r/HasProperty | key
Facets:
Source sentences:
text: It also plays a key role in energy production and the formation of red blood cells (16).
text: Vitamin B12 also plays a key role in reducing levels of an amino acid called homocysteine, high levels of which have been linked to chronic conditions like heart disease, stroke, and Alzheimer’s ( 2 ).
text: Folate and vitamin B12 play key roles in converting homocysteine into methionine, one of the 20 or so building blocks from which the body builds new proteins.