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Dietary Reference Intakes Applications in Dietary Assessment (2000) / Chapter Skim
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5 Using the Adequate Intake for Nutrient Assessment of Groups
Pages 106-112

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From page 106...
... DERIVATIONS OF THE AI How is the Adequate Intake (AIJ dined ? The AI is a recommended average daily nutrient intake level, based on experimentally derived intake levels or approximations of observed mean nutrient intake by a group (or groupsJ of apparently healthy people that are assumed to be adequate.
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From page 107...
... are some examples of nutrients with an AI and the basis for their derivation: · Calcium: For infants the AI is a direct estimate of a suitable intake baseci on average content of human milk for an assumed volume of intake. For adolescents and adults the AI is an approximation of the calcium intake that would be sufficient to maintain desirable rates of calcium retention, as cletermineci from balance studies, factorial estimates of requirements, and limited information on bone mineral content and bone mineral density (IOM, 1997~.
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From page 108...
... No Folate 0-12 mo Yes Niacin 0-12 mo Yes Pantothenic Acid 0-12 mo Yes 1-18 y Yes 19-50 y Yes >51 y Yes Pregnancy (all ages) Yes Lactation (all ages)
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From page 109...
... · Pantothenic acici: The AI is baseci on estimated mean intakes of apparently healthy populations. COMPARISON OF THE AI, RDA, AND EAR In general, how does the Adequate Intake (Al)
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From page 110...
... , any prevalence estimates of nutrient inacloquacy calculated by counting inclivicluals with intakes below the AI would be overestimates potentially major overestimates of the true prevalence. Thus, although the EAR may be used as a cut-point, the AI may not be used as a cut-point to estimate the percentage of a population with inadequate intakes.
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From page 111...
... It is not possible to know exactly where the mean intake as a percentage of the AI becomes associated with an increased risk of inacloquacy. For example, mean intakes at 70 ancT 90 percent of the AI may have virtually identical very low risks of inacloquacy.
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From page 112...
... 112 DIETARY REFERENCE INTAKES alence of nutrient inacloquacy that are erroneous and usually too high. SUMMARY Since the Acloquate Intake (AI)
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Key Terms

  • average requirement
  • adequate intake
  • estimated average
  • nutrient intakes
  • inadequate nutrient

  • nutrient intake
  • human milk
  • apparently healthy
  • observed mean
  • defined nutritional

  • dietary allowance
  • nutrient deficiency
  • low prevalence
  • inadequate intakes
  • mean intake

  • bone mineral
  • nutritional status
  • healthy populations
  • factorial estimates
  • recommended dietary

  • prevalence estimates
  • experimental study
  • status consistent
  • derived intake
  • healthy people

  • healthy population
  • balance studies
  • calcium retention
  • desirable rates
  • deficiency state


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