Assertion: vitamin c's role | /r/HasProperty | important
Facets:
Source sentences:
text: It plays an important role in the production of collagen and certain neurotransmitters, and is valuable in healing and protein metabolism.
text: Vitamin C, also called ascorbic acid, plays many important roles in the body.
text: In addition to its biosynthetic and antioxidant functions, vitamin C plays an important role in immune function  and improves the absorption of nonheme iron , the form of iron present in plant-based foods.
text: Vitamin C makes the skin firmer because it plays an important role in building up collagen.
text: Vitamin C plays an important role in a number of bodily functions including the production of collagen, L-carnitine, and some neurotransmitters.
text: It also plays an important role in wound healing, keeping your bones strong, and enhancing brain function ( 1 ).
text: Vitamin C plays an important role in collagen formation and immune function.
text: Vitamin C plays an important role in immune health and helps your body's immune system in a few different ways.
text: Vitamin C also plays an important role in the synthesis of the neurotransmitter , norepinephrine.