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. 2007 Feb;92(2):160–164. doi: 10.1136/adc.2006.109066

Table 2 Summary of reference nutrient intakes for vitamins (units/day).

Vitamin RNI 0–3 months and 4–6 months7 RNI 7–9 months or 10–12 months7 RNI 1–3 years7 Tolerable upper intakes8
A (μg) 350 350 400 800 μg/day (1–3 years)
D (μg) 8.5 7 7 25 μg/day (0–24 months)
E (mg) 0.4 mg/g PUFA 0.4 mg/g PUFA 0.4 mg/g PUFA 10 mg/100 kcal of formula
K (μg) 10 10 10 Not given
B1 (thiamine) (mg) 0.2 0.2/0.3 0.5 Not given
B2 (riboflavin) (mg) 0.4 0.4 0.6 Not given
Niacin (equivalents mg) 3 4/5 8 2 mg/day (1–3 years)
B6 (pyridoxine) (mg) 0.2 0.3/0.4 0.7 5 mg/day (1–3 years)
B12 (μg) 0.3 0.4 0.5 Not given
Biotin (μg) Not given Not given Not given 7.5/100 kcal
Pantothenate (mg) 1.7 1.7 1.7 1.2/100 kcal
Folic acid (μg) 50 50 70 200 μg/day (1–3 years)
C (mg) 25 25 30 30 mg/100 kcal

PUFA, polyunsaturated fatty acids; RE, retinol equivalents; RNI, reference nutrient intake.

Vitamin A expressed as retinol equivalent: 1 μg RE = 3.33 IU.

Vitamin D (calciferol): 1 μg = 40 IU.

Vitamin E, α‐tocopherol equivalent: 1 mg = 1 IU.

Vitamin C expressed as ascorbic acid.

Biotin—no daily reference value given; however, an intake between 10 and 200 μg/day considered safe and sufficient.