Vitamin C Dietary References, US Institute of Medicine (2000)


Dietary references values for Vitamin C according to US Institute of Medicine (2000)1.

Recommended Dietary Allowance

Recommended Dietary Allowance (RDA): Average daily level of intake sufficient to meet the nutrient requirements of nearly all (97%–98%) healthy individuals; often used to plan nutritionally adequate diets for individuals.

mg/day: milligram per day

1.00 - 
3.99 years
15 mg/day
4.00 - 
8.99 years
25 mg/day
9.00 - 
13.99 years
male
45 mg/day
9.00 - 
13.99 years
female
45 mg/day
14.00 - 
18.99 years
male
75 mg/day
14.00 - 
18.99 years
female
65 mg/day
19.00 - 
30.99 years
male
90 mg/day
19.00 - 
30.99 years
female
75 mg/day
31.00 - 
50.99 years
male
90 mg/day
31.00 - 
50.99 years
female
75 mg/day
51.00 - 
70.99 years
male
90 mg/day
51.00 - 
70.99 years
male
90 mg/day
51.00 - 
70.99 years
female
75 mg/day
51.00 - 
70.99 years
female
75 mg/day
14.00 - 
18.99 years
lactating
115 mg/day
19.00 - 
30.99 years
lactating
120 mg/day
31.00 - 
50.99 years
lactating
120 mg/day
14.00 - 
18.99 years
pregnant
80 mg/day
19.00 - 
30.99 years
pregnant
85 mg/day
31.00 - 
50.99 years
pregnant
85 mg/day
SmokerSmokers have a higher need for Vitamin-C. The Additional need is estimated 35mg/day.

Adequate Intake

Adequate Intake (AI): Intake at this level is assumed to ensure nutritional adequacy; established when evidence is insufficient to develop an RDA.

mg/day: milligram per day

0.00 - 
0.49 years
40 mg/day
0.50 - 
0.99 years
50 mg/day

Estimated Average Requirement

Estimated Average Requirement (EAR): Average daily level of intake estimated to meet the requirements of 50% of healthy individuals; usually used to assess the nutrient intakes of groups of people and to plan nutritionally adequate diets for them; can also be used to assess the nutrient intakes of individuals.

mg/day: milligram per day

1.00 - 
3.99 years
13 mg/day
4.00 - 
8.99 years
22 mg/day
9.00 - 
13.99 years
male
39 mg/day
9.00 - 
13.99 years
female
39 mg/day
14.00 - 
18.99 years
male
63 mg/day
14.00 - 
18.99 years
female
56 mg/day
19.00 - 
30.99 years
male
75 mg/day
19.00 - 
30.99 years
female
60 mg/day
31.00 - 
50.99 years
male
75 mg/day
31.00 - 
50.99 years
female
60 mg/day
51.00 - 
70.99 years
male
75 mg/day
51.00 - 
70.99 years
male
75 mg/day
51.00 - 
70.99 years
female
60 mg/day
51.00 - 
70.99 years
female
60 mg/day
14.00 - 
18.99 years
lactating
96 mg/day
19.00 - 
30.99 years
lactating
100 mg/day
31.00 - 
50.99 years
lactating
100 mg/day
14.00 - 
18.99 years
pregnant
66 mg/day
19.00 - 
30.99 years
pregnant
70 mg/day
31.00 - 
50.99 years
pregnant
70 mg/day

Tolerable Upper Intake Level

Tolerable Upper Intake Level (UL): Maximum daily intake unlikely to cause adverse health effects.

mg/day: milligram per day

1.00 - 
3.99 years
400 mg/day
4.00 - 
8.99 years
650 mg/day
8.00 - 
13.99 years
1200 mg/day
14.00 - 
18.99 years
1800 mg/day
19.00 - 
years
2000 mg/day
14.00 - 
18.99 years
lactating
1800 mg/day
19.00 - 
years
lactating
2000 mg/day
14.00 - 
18.99 years
pregnant
1800 mg/day
19.00 - 
years
pregnant
2000 mg/day

Sources

1
Institute of Medicine (US) Panel on Dietary Antioxidants and Related Compounds. (2000). Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Retrieved from https://www.ncbi.nlm.nih.gov/books/NBK225483/ at 2018-02-10.