Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Foundations In Human Nutrition > Dietary Assessment Methods > Flashcards

Dietary Assessment Methods Flashcards

1
Q

Name the 4 Nutritional Status Assessment methods

A

Anthropometry

Biochemistry

Clinical and Physical Assessment

Dietary Intake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the 8 Dietary Assessment Methods

A

Food Diary or Food Records

24-Hour recall

Food frequency questionnaire

Dietary HIstory

Weighed Food Records

Biomarker Assessment

Direct Observation

Technology-Based Methods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the uses of dietary assessment methods?

A

Public Health

Clinical

Research

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why are dietary assessment methods important?

A

Assessing the relationship between diet and disease

Clinical Medicine

Assignment of dietary reference values

Policy making

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Briefly explain how Food Diary or Food records are used as a dietary assessment method

A

Individuals record everything they eat and drink over a specified period.
This method provides detailed information about types and quantities of food consumed but can become a burden.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Briefly explain how 24-hour recall is used as a dietary assessment method

A

Individuals report all dietary intake consumed in the past 24 hours to an interviewer or a software tool.
Less burdensome for participants but might not represent typical eating habits.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Briefly explain how food frequency questionaries are used as a dietary assessment method

A

Individuals report how often they consume specific types of food or groups of food over a specified period.
Can provide an overview of habitual intake. Accurate intake is difficult to assess. Can be timely and long. Not suited to all ethnicities.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Briefly explain how diet history is used as a dietary assessment method

A

A comprehensive interview about an individual’s eating habits, preferences, and dietary patterns over a more extended period, which may include childhood and cultural influences.
Might not represent typical eating habits.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Briefly explain how weighed food records are used as a dietary assessment methods

A

Individuals weigh and record all foods and beverages consumed.
Highly accurate data. Can be burdensome and affect normal eating patterns.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Briefly explain how biomarker assessments are used as a dietary assessment method

A

Involves measuring biomarkers in bodily fluids or tissues, such as blood or urine samples, to assess nutrient intake.
Biomarkers provide objective data about the body’s response to nutrients. Expensive and invasive.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Briefly explain how direct observations are used as a dietary assessment method

A

Trained observers watch and record an individual’s food intake.
Provides real-time and accurate information. It can be intrusive and may alter eating behaviors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Briefly explain how technology-based methods are used as a dietary assessment method

A

Apps and software were developed to track food intake.
Often include databases of food composition for easier and more accurate tracking. Relies on user input.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Give the 3 major problems to accurate food history

A

Measuring an individual’s current dietary intake makes them change their behavior

Measuring past intake relies on the memory and honesty of the subject

Errors introduced by food composition tables

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name important aspects that need to be considered when designing a dietary questionnaire

A

Maximally informative

Minimally Invasive

Target Population

Fit for purpose

Questionnaire validation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is indirect dietary assessment carried out?

A

Nationala nd Regional

Household

Do not rely on information obtained directly from individuals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How is direct assessment carried out?

A

Information obtained directly from consumers

Provides enough information to convert food intake into E and nutrients

17
Q

What are the 2 ways the duration period is classified?

A

Short term

Long term

18
Q

What are the 2 ways the time frame of collected data is classified?

A

Past/Retro

Current/prospective

19
Q

Which of the dietary assessment methods are classed as retrospective methods?

A

Diet history

24-hour recall

Food frequency questionaries

20
Q

Which of the dietary assessment methods are classed as prospective methods?

A

Duplicate diets

Weighed food diaries

Estimated food diaries

21
Q

Give the advantages and disadvantages of retrospective dietary assessment methods

A

Advantages:

Quick

Cheap

Low subject motivation

Lower literacy skills needed

Good cooperation

Can be sent in the post

Disadvantages:

Reliant on memory

Conceptualization skills needed

Observer bias possible

Distortion of the usual diet

May lack day-to-day variation

Requires regular eating habits

Dependent on food composition tables

22
Q

What are the advantages and disadvantages of prospective dietary assessment methods?

A

Advantages:

Current diet

Direct observation

Daily variation described

The length of recording can vary

Disadvantages:

Labor intensive

Requires respondent skills

Under-reporting likely

Expensive

23
Q

What are the 9 categories dietary assessment methods are based on?

A

Purpose

Population

Setting

Administration

Reliability

Validation

Acceptability

Timescale

Use

24
Q

What tools can support dietary assessment?

A

Food portion sizes

Food tables

Awareness of energy and protein content of common foods

Computerized dietary analysis tools

25
Q

Explain how random errors can be reduced in dietary assessment methods

A

This can be reduced by the increased number of observations and standardization of measurements

26
Q

How do random errors come about in dietary assessment methods?

A

Unpredictable/unknown

Variation in diet. inconsistencies of measurements

27
Q

Why are there variations within the diets of subjects?

A

Individual variation - age, culture

Dietary variation in week/weekend

Increase in variation due to:

Reduction in frequency of family meals

Increase in single households

Wide range of food easily available

Rise in consumption of food eaten out of the home

Long working hours

28
Q

Why are there variations in diets between subjects?

A

Variation of nutrient intake between:

Groups

Populations

Genders

Age

Socio-Economic Status

29
Q

Name techniques that can be used to identify under-reporting when carrying out dietary assessment methods

A

Doubly labeled water

Urine nitrogen excretion

Energy Intake

30
Q

Give the values and limitations of dietary assessment methods

A

Measurement of diet is important in many types of study:

Cohort studies

Intervention studies

Consideration of the aims of dietary assessment is crucial to guide the choice of the most appropriate method

Do you want to assess individuals or groups?

Are you interested in a particular nutrient?

Do you want to discover if recommendations are being met?

Foundations In Human Nutrition (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions