A-4: Dietary Reference Intakes, Adult Daily Value, Upper Level
- Page ID
- 67263
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a Tolerable Upper Intake Level: the maximum intake at which an adverse effect is unlikely
b Not determinable due to lack of data; caution advised as to excessive intake
c 1 mcg vitamin A (retinol) = 1 Retinol Equivalents (RE) = 5 International Units (IU)
d Recommended amount for smokers is 35 mg more vitamin C
e 1 mcg vitamin D (cholecalciferol) = 40 International units (IU). Can get vitamin D via sun exposure
f 22 mg vitamin E = 30 International Units (lU)
g Women capable of pregnancy advised to get 400 mcg folate from supplements or fortified food
h Applies to magnesium from pharmaceutical agents only
i 10-30% of older adults may malabsorb B12; age 51+ advised to get B12 from fortified food or supplements
j Upper Level replaced by CDRR (Chronic Disease Risk Reduction Intake): Reduce sodium intake if >2300 mg/day