Lecture 1a: Dietary Assessment Flashcards
What are the different nutritional assessments? (5)
- Dietary intakes
- Anthropometrics
- Biochemical analysis
- Clinical
- Environmental
What is anthropometrics?
the study of human body measurements and proportions
What is a biochemical analysis?
studying the chemical composition of food and its effects on the human body (urine, faeces etc.)
What is clinical nutritional assessment?
medical history, dietary intake, physical examination, biochemical tests, and anthropometric measurements
What is an environmental nutritional assessment?
Living situation and finances
Why do we do a nutritional assessment?
To provide a basis for a nutritional diagnosis and evaluation, identifying problems and their causes
What is over-reporting?
reporting they are eating more than they are
What is under-reporting?
reporting they are eating less than they are
What are the 4 stages of dietary assessment?
- Determine food intake
- Convert food intake into nutrient intake
- Interpret nutrient and food intake data
- Feedback
What are some direct ways to determine food intake?
Food frequency questionnaire, diet recall method and diet history, diet record
What is a food frequency questionnaire?
Participant answers questions about how often they consume particular foods/drinks
What is a diet recall?
Participants recall all foods and drinks eaten in the last 24 hours
What is diet history?
Participants answer questions about usual food intake and meal pattern, may include a short FFQ
What is a diet record?
Respondent is asked to estimate/weigh and record all foods and drinks when they are consumed over a set time period
What is the most common method for determining food intake in athletes?
Diet record method
How do technology based dietary assessment compare with traditional dietary assessment methods?
Don’t reply on memory, automatically process data but depend on nutrient database and can incur errors on input
What is the general inaccuracy of technology dietary assessment?
difference anywhere from -700 to +1000kJ
What are athlete specific issues for serving sizes?
consume large amounts over standard serves