DRI

Question 1

what is the set of standards for energy and nutrients in Canada? in USA?

Answer 1

RNI-recommended nutrients intakes

RDA- recommended dietary allowances

GOAL- prevent nutrient deficiencies

Question 2

what is the FNB

Answer 2

food and nutrition board

Question 3

what is the IOM

Answer 3

institute of medicine

Question 4

NAS

Answer 4

national academy of sciences

Question 5

what are the two main subcommitties on the standing committee on the scientific Evaluation of Dietary Reference Intakes

Answer 5

• upper reference levels…deals with toxicity and risks…what is too much… in a society with supplements
• interpretation and uses of DRIs….deals with teaching people and showing them how to use the DRIs….set out guidance documents

Question 6

did the development and publication of DRIs report for individual or group nutrients

Answer 6

individual

Question 7

who was involved in the DRI project

Answer 7

• Standing committee on Scientific Evaluation of Dietary Referencce Intakes (and subcommittees)
• expert nutrient reiew pannels
• organizations: FNB of the IOM and part of the NAS

health canada

Question 8

what do DRIs consist of?

Answer 8

four reference values:

EAR
RDA
AI
UL

these are estimates bc you cant be 100% sure

Question 9

are DRIs quantitative or qualitative estimates of nutrient intakes

Answer 9

quantitative

Question 10

**what are the goals of DRIs

Answer 10

-prevent deficiency and optimize health

Question 11

DRIs are used for ______ and _____ diets of ______people

Answer 11

planning
assessing
healthy

Question 12

DRIs can look at preventing deficiency and _____disease

Answer 12

chronic

Question 13

why would we change DRIs

Answer 13

• expand knowledge WRT preventing chronic disease
• extend goal of recommendations beyond preventing deficiencies
• harmonize Canada and USA

Question 14

how much of the nutrient is needed depends on what you consider adequate….

Answer 14

what is the criteria?

may differ depending on nutrient, and life-stage group

Question 15

list the potential criteria of Vit C adequacy

Answer 15

• prevent scurvy
• saturate tissues (allows us to optimize Vit C status levels)
• maximize absorption of non-heme iron
• reduce risk of gastric cancer

Question 16

What is EAR

Answer 16

estimated Average Requirement

a daily nutrient intake value that is estimated to meet the requirement of HALF of the healthy individuals in a particular life stage and gender group

usually the answer to a question is EAR

Question 17

what is EAR used for ?

Answer 17

planning…..how much a group should consume

assessment …. adequacy intake of an individual or group

Question 18

what is the RDA

Answer 18

recommended dietary allowance

avg, daily dietary intake level that is sufficient to meet the nutrient req. of nearly all (97-98%) of healthy individuals in a particular life stage and gender group

Question 19

the RDA is the EAR plus ______

Answer 19

two standard deviations

Question 20

what is the RDA used for

Answer 20

planning for individuals

only use for assessment IF long term usual intake is known

Question 21

what is a type 1 and type 2 error

Answer 21

type 1: reject null, but the null is true

type 2: do not reject null but the null was false

Question 22

what is AI

Answer 22

Adequate intake

recommended daily intake values based on observed or experimentally determined approximations of nutrient intake by a group (or groups) of healthy people

used when EAR and RDA cannot be determined

Question 23

how is the AI obtained

Answer 23

from data that shows a mean intake that appears to sustain a desired indicator (eg Ca retention in bone)

Question 24

what is aI used for

Answer 24

planning for individuals when RDA does not exist

assessment :
for individuals when EAR/RDA does not exist
for groups when EAR does not exist

Question 25

what is UL

Answer 25

tolerable Upper intake level

the highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population
as intake increases about the UL, the risk of adverse effects increases

how much your body can tolerate

some nutrients dont have UL bc it hasnt been figured out

Question 26

what is the purpose of UL

Answer 26

guards against over consumption

it is NOT a recommended level of intake

Question 27

what can UL be used for

Answer 27

planning and assessment

Question 28

DRIs vary by _____________

Answer 28

Life stage group

Question 29

infants are usually assigned an AI….where does this number come from?

Answer 29

comes from the amount of breast milk an infant would consume per day

Question 30

do DRIs account for variation is individual differences?

Answer 30

yes

Question 31

T/F?

the estimates for DRIs is based on average/usual daily intakes and accounts for variability

Answer 31

true

Question 32

What was important about DRI Report #5 in 2000?

Answer 32

• applications in dietary assessment
• key guide to actually using the DRIs
• individuals vs groups

Question 33

implementation of DRIs in Canada

Answer 33

• HC assembles expert advisory panels
• review DRIs and identify public health implications for Canada
• Public policy
• Public education
• public programs

-link between DRI and Canada’s dietary guidelines (Canada food guise, food labels, food fortification policy)