united_statesDietary Reference Intakes for Vitamin B3(Niacin) in United States

Men

Age AI RDA UL
0 - 6 months 2 mg - -
7 - 12 months 4 mg - -
1 - 3 years - 6 mg 10 mg
4 - 8 years - 8 mg 15 mg
9 - 13 years - 12 mg 20 mg
14 - 18 years - 16 mg 30 mg
19 - 30 years - 16 mg 35 mg
31 - 50 years - 16 mg 35 mg
51 - 70 years - 16 mg 35 mg
70 years and abobe - 16 mg 35 mg

Women

Age AI RDA UL
0 - 6 months 2 mg - -
7 - 12 months 4 mg - -
1 - 3 years - 6 mg 10 mg
4 - 8 years - 8 mg 15 mg
9 - 13 years - 12 mg 20 mg
14 - 18 years - 14 mg 30 mg
19 - 30 years - 14 mg 35 mg
31 - 50 years - 14 mg 35 mg
51 - 70 years - 14 mg 35 mg
70 years and abobe - 14 mg 35 mg

Pregnant Women

Age AI RDA UL
14 - 18 years - 18 mg 30 mg
19 - 30 years - 18 mg 35 mg
31 - 50 years - 18 mg 35 mg

Lactating Women

Age AI RDA UL
14 - 18 years - 17 mg 30 mg
19 - 30 years - 17 mg 35 mg
31 - 50 years - 17 mg 35 mg


Source: Dietary Reference Intakes (DRIs): Recommended Intakes for Individuals, Food and Nutrition Board, Institute of Medicine, National Academies, 2004, retrieved 2009