Table 2.
Select Micronutrients | Recommended Dietary Allowance [78] | Tolerable Upper Intake Levels [78] | Reported Mean Micronutrient Intakes, Min–Max [96] | ||||||
Children a 4–8 years 9–13 years 14–18 years: M/F |
Adults 19–50 years: M/F b |
Older age 51 to >70 years: M/F |
Children a 4–8 years 9–13 years 14–18 years |
Adults 19–50 years: b |
Older age 51 to >70 years |
Children 4–6 years: M/F 7–9 years: M/F 10–14 years: M/F 15–18 years: M/F |
Adults 19–50 years: M/F |
Older age 51 to >70 years: M/F |
|
Vitamin C, mg/day | 25 45 75/65 |
90/75 | 90/75 | 650 1200 1800/1800 |
2000 | 2000 | 60–157/61–157 63–172/57–172 73–197/77–222 71–201/67–205 |
64–153/62–153 | 59–142/60–160 |
Vitamin D, μg/day | 15 | 15 | 15–20 | 75 100 100/100 |
100 | 100 | 1.8–5.8/1.5–6.5 1.5–6.4/1.5–5.1 1.5–4.8/1.2–4.5 1.8–7.5/1.5–7.1 |
1.6–10.9/1.2–10.1 | 0.7–15.0/0.7–12.9 |
Vitamin A, μg/day | 400 600 900/700 |
900/700 | 900/700 | 900 1700 2800/2800 |
3000 | 3000 | 400–1100/400–1200 400–1300/400–1100 400–2400/300–2300 400–1800/300–1600 |
500–2200/500–2000 | 500–2500/400–2300 |
Vitamin E, mg/day | 7 11 15 |
15 | 15 | 300 600 800 |
1000 | 1000 | 5.3–9.8/5.1–9.8 6.3–11.2/5.9–13.3 5.9–14.5/5.6–18.1 6.8–20.8/6.0–15.5 |
3.3–17.7/4.2–16.1 | 6.3–13.7/6.7–13.7 |
Vitamin B6, mg/day | 0.6 1.0 1.3/1.2 |
1.3 | 1.7/1.5 | 40 60 80 |
100 | 100 | 1.3–1.8/1.0–1.9 1.2–2.5/1.1–1.9 1.2–2.8/1.1–2.7 1.5–3.1/1.2–2.5 |
1.6–3.5/1.3–2.1 | 1.2–3.0/1.2–2.9 |
Vitamin B12, μg/day | 1.2 1.8 2.4 |
2.4 | 2.4 | ND | ND | ND | 2.7–5.3/2.6–5.0 3.6–5.5/2.2–5.3 3.2–11.8/2.2–11.1 4.9–7.5/3.5–5.2 |
1.9–9.3/1.0–8.8 | 3.1–8.2/2.5–7.5 |
Folate, μg/day | 200 300 400 |
300-400 | 400 | 400 600 800 |
1000 | 1000 | 120–256/109–199 144–290/133–264 149–428/140–360 190–365/154–298 |
203–494/131–392 | 139–343/121–335 |
Zinc, mg/day | 5 8 11/9 |
11/8 | 11/8 | 12 23 34 |
40 | 40 | 6.0–9.2/5.3–8.9 7.0–10.9/6.4–9.4 7.0–14.6/6.1–13.9 9.3–15.2/6.4–11.0 |
8.6–14.6/6.7–10.7 | 7.5–12.3/6.7–11.2 |
Iron, mg/day | 10 8 11/15 |
8/18 | 8 | 40 40 45 |
45 | 45 | 7.3–10.6/6.8–10.6 8.4–11.8/7.7–11.8 9.2–19.4/7.7–14.8 10.2–19.0/7.8–14.0 |
10.6–26.9/8.2–22.2 | 10.2–25.2/8.5–20.9 |
Copper, μg/day | 440 700 890 |
900 | 900 | 3000 5000 8000 |
10,000 | 10,000 | 700–2200/700–2000 900–2800/800–2600 800–2900/700-2800 1200–3400/800–2100 |
1100–2300/1000–2200 | 1100–1900/900–1900 |
Selenium, μg/day | 30 40 55 |
55 | 55 | 150 280 400 |
400 | 400 | 23–61/24–61 27–41/26–58 29–110/28–104 39–59/30–38 |
36–73/31–54 | 39–62/34–55 |
a Although adequate intake values are provided by the Institute of Medicine for infants (0–12 months) and recommended dietary allowances for children (1–3 years) [78], there are few data regarding micronutrient deficiencies in this age groups in industrialized countries and these ages have therefore not been included in this table; b values differ in pregnancy and lactation. F, females; M, males; ND, not determined.