There is no RDA for biotin because _____.
A) biotin can be synthesized in the body
B) it is not a true essential nutrient
C) there is insufficient research on biotin requirements
D) biotin is widespread in foods so requirements are not a concern
E) its role in energy metabolism can be met by another vitamin
Correct Answer:
Verified
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Q23: The RDA for niacin is _ .
A)
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A) a condition that
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