acceptable daily intake
Dietary Allowances and Intakes, Recommended
Dietary Reference Intakes
EU Population Reference Intakes of nutrients, 1993
reference nutrient intake
UK Reference Nutrient Intakes, 1991
US/Canadian Recommended Dietary Allowances and Acceptable Intakes, 1997–2001
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1 A structure through which water enters a reservoir.
2 The process (ingestion or inhalation) by which a substance enters a body without being absorbed through its exterior. See also administered dose.
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