DRIs

Question 1

What are DRIs:

Common set of ______ ______ for Canada and the US that are based on scientifically grounded relationships between nutrient intakes and indicators of adequacy

Answer 1

reference values

Question 2

DRIs are designed to:

Provide _______ _________ and planning guidance for individuals & groups (populations)

Reflect scientific evidence concerning the relationship between _____ and _______ _________reduction

Answer 2

dietary assessment

diet, and chronic disease

Question 3

DRIs are set for nutrients that:

1. are found in?
2. Have what?
3. or which the levels required for tissue homeostasis and normal function in humans are ________

Answer 3

1. food
2. have essential, identifiable biological function
3. known

Question 4

How are DRIs determined?

_______ samples of certain things, when plotted on a graph, will form a _______ distribution or (bell curve)

Answer 4

Random, normal

Question 5

What does DRI stand for?

Answer 5

Dietary Reference Intake

Question 5

DRIs are divided into how many life stage [age] groups by sex?

Answer 5

12

Question 5

DRI is a collective term encompassing how many possible values for individual nutrients based on age and gender:

Answer 5

4

Question 6

What are the 4 possible values for individual nutrients based on age and gender:

Answer 6

1. Estimated average requirements (EAR)
2. Recommended dietary allowance (RDA)
3. Adequate intake (AI)
4. Tolerable upper intake level (UL)

Question 7

Definition: 1. EAR (Estimated Average requirements)

How is it used?

Answer 7

the daily intake estimated to meet the requirement of 50% of the people in a specific age and sex group

evaluate individual nutrient needs and plan nutrition programs for meet groups’ needs

Question 8

Definition: 2. Recommended dietary allowance (RDA)

How is it used?

Answer 8

the dietary intake level that meets the daily nutrient requirements of 97.5% of the people in a specific age and sex group.

can be used with EAR to assess nutrient adequacy

Question 9

Definition of 3. Adequate Intake (AI)

How is it used?

Answer 9

a recommended intake based on observed or experimentally determined estimates of nutrient intake by a population (or groups) of healthy people;

The value is based on scientific judgement (comparable to RDA but based on less scientific evidence)

Question 10

Definition of 4. Tolerable Upper Intake Level (UL)

How is it used?

Answer 10

the level of daily nutrient intake that is not likely to create adverse health effects in 97.5% of the people in a specific age and sex group;

UL is a ceiling or maximum level used to guard against overconsumption

Question 11

Intakes below what are likely to need improvement?

Answer 11

EAR

Question 12

Intakes between what are likely to need improvement?

Answer 12

EAR and RDA. Intakes below RDA cannot be interpreted accurately.

Question 13

Intakes above what are adequate?

Answer 13

RDA

Question 14

What is the goal of DRIs

Answer 14

to recommend a diet that provides adequate but not excessive, levels of nutrients

Question 15

Max, aged 20 years, has an average intake of Vitamin C of 100 mg/day. The EAR for Vitamin C for males aged 19-30 years is 75 mg/day. The RDA for males aged 19- 30 years is 90 mg/day. The UL is 2000 mg/day.

• How would you assess the adequacy of Max’s average Vit C intake?

Answer 15

Probably adequate

Question 16

Sarah, aged 60 years, has an average intake of Vitamin E of 10 mg/day. The EAR for Vitamin E for females aged 51-70 years is 12mg/day. The RDA for females aged 51- 70 years is 15 mg/day.

• How would you assess the adequacy of Sarah’s average Vit E intake?

Answer 16

Inadequate

Question 17

The further the intake is below the RDA the more likely it is to be

Answer 17

inadequate

Question 18

If intake is >= AI, it is very likely

if intake is <AI

Answer 18

adequate

cannot conclude anything about inadequacy

Question 19

Intake >UL
Intake <UL

Answer 19

may present a health risk for some people

likely safe

Question 20

Requirements for MOST nutrients are ______ _______

Answer 20

normally distributed

Question 21

DRIs are primarily focused

Answer 21

focused on micronutrients

Question 22

What is primarily focused on Macronutrients?

Answer 22

AMDRs, Acceptable macronutrient distribution ranges (AMDRs)