DRI- 1

Question 1

DRI came after

Answer 1

old RDA (which made ppl think needed to be met every day- took too literally) and RNI’s

Question 2

Dietary reference intakes include

Answer 2

EAR, RDA, AI, UL

Question 3

RDA (recommenced dietary allowance)

Answer 3

exceeds the requirement for nearly all the members

Question 4

RDA must account for

Answer 4

individual variability in a population, bioavailability, sex and age, physiological state

Question 5

UL

Answer 5

upper intake level

Question 6

EAR

Answer 6

estimated average requirement
- meet half of healthy individuals in life stage and gender group
-

Question 7

RDA

Answer 7

recommended dietary allowance

• EAR + 2 SD
• if no S.D than EAR (1.2)
• for individuals after diet is assessed over time

Question 8

new consideration for RDA

Answer 8

to prevent chronic diseases

Question 9

what are RDA not intended for

Answer 9

to overcome deficiencies or recover from illness

Question 10

recommendations are set for?

Answer 10

deficiency disease prevention and chronic disease prevention

Question 11

what are beginning to be considered for disease prevention

Answer 11

non-essential food components

Question 12

criteria of adequacy

Answer 12

biomarkers of exposure, mechanisms or functional outcomes, effect and clinical outcome

Question 13

biomarkers of exposure

Answer 13

blood levels, balance studies

Question 14

biomarkers of factional outcome

Answer 14

enzyme saturationor activity

Question 15

biomarkers of effect

Answer 15

efficacy outcome (LDL levels, bone mineral density)

Question 16

RDA allow an estimate of?

Answer 16

the risk of deficiency for an individual if the diet is assessed over time

• must also include ABCD and F
• could not just diagnose a deficiency my seeing someone eat below the RDA

Question 17

when would a deficiency be seen fastest?

Answer 17

with high turnover and small pool size ( B2- 3 days)

Question 18

why can’t we compare the group mean intake with the EAR?

Answer 18

bc even though the same mean, could have higher variance and therefore have a greater prevalence of inadequecy

Question 19

If 2.5 % of the mean population intake is below the EAR, what is the estimated prevalence of deficient intakes?

Answer 19

1% have risk of deficiency as some people will not be at risk bc some will not be deficient consuming the nutrient at below the EAR