Niacin has a UL of 35 mg for adults ages 19-70. This indicates:
a. an RDA cannot be determined; this amount is based on the amount presumed to be adequate
b. the average amount of a nutrient which meets 97-98% of healthy peoples' needs
c. 35 mg is the safe upper limit of niacin that should not present risk of negative health effects
d. meets needs of 1/2 healthy people from ages 19-70
Ans: c. 35 mg is the safe upper limit of niacin that should not present risk of negative health effects
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