Dietary Reference Intakes for Vitamin C in United States (per day)

Males EAR RDA AI UL
0-6 months - - 40 mg -
7-12 months - - 50 mg -
1-3 years 13 mg 15 mg - 400 mg
4-8 years 22 mg 25 mg - 650 mg
9-13 years 39 mg 45 mg - 1200 mg
14-18 years 63 mg 75 mg - 1800 mg
19-30 years 75 mg 90 mg - 2000 mg
31-50 years 75 mg 90 mg - 2000 mg
50-70 years 75 mg 90 mg - 2000 mg
70 years and older 75 mg 90 mg - 2000 mg
Females EAR RDA AI UL
0-6 months - - 40 mg -
7-12 months - - 50 mg -
1-3 years 13 mg 15 mg - 400 mg
4-8 years 22 mg 25 mg - 650 mg
9-13 years 39 mg 45 mg - 1200 mg
14-18 years 56 mg 65 mg - 1800 mg
19-30 years 60 mg 75 mg - 2000 mg
31-50 years 60 mg 75 mg - 2000 mg
50-70 years 60 mg 75 mg - 2000 mg
70 years and older 60 mg 75 mg - 2000 mg
Pregnancy EAR RDA AI UL
less than 18 years 66 mg 80 mg - 1800 mg
19-30 years 70 mg 85 mg - 2000 mg
31-50 years 70 mg 85 mg - 2000 mg
Lactation EAR RDA AI UL
less than 18 years 96 mg 115 mg - 1800 mg
19-30 years 100 mg 120 mg - 2000 mg
31-50 years 100 mg 120 mg - 2000 mg
Reference: Dietary Reference Intakes (DRIs): Recommended Intakes for Individuals, Food and Nutrition Board, Institute of Medicine, National Academies, 2010