Chapter 3 - Assessing Nutritional Status and Health Flashcards
desirable nutrition status
state where body tissues have enough of a nutrient to:
- support normal metabolic functions
- surplus stores in times of need
- perform bodily funcitons
how is desirable nutrition status achieved?
by consuming a healthful diet through adequacy, moderation, balance and variety with nutrient dense foods
monotonous diet
concept that there is no bad food
adequacy is…
sufficient: - energy to maintain desirable weight - carbohydrates, protein and fats (and right types) - vitamins and minerals getting enough, but not too much
moderation is..
- every food fits
- not consuming too much energy, fat, sugar, sodium or alcohol
balance is…
- mixing and matching foods
- combinations to get the correct proportions of nutrients
- eg.) milk products (calcium and iron)
variety is…
eating many different foods from all of the food groups each day
- both among and within food groups
- monotonous diets can lead to…
choosing nutrient dense foods increases your chances of ______
adequacy
what is the primary reason nutrient deficiencies can happen?
- inadequate intake
- identified through dietary analysis
what is the secondary reason nutrient deficiencies can happen?
sufficient intake, but:
- malabsorption
- altered metabolism
- drug-nutrient interactions
- nutrient-nutrient interactions
what are the 4 ways dietary intake can be assessed?
1) food frequency questionnaire
2) diet history
3) food diary or food intake record
4) 24-hour recall
food frequency questionnaire
given a list of foods and asked to indicate:
- how often they eat the food
- average portion size that they eat
the type of food on the list is the key to accuracy
diet history
- often used by dieticians
- combines 2 methods of assessment
- other things taken into consideration: physical activity patterns, diseases, dental health, ethnic or cultural factors, access to foods
food diary or food intake record
a written food diary of: - what is eaten -including brand names - when it is eaten - how much of it is eaten usually kept for 3 days
24 hour recall
- used for large scale nutrition surveys
- recall what food/beverages consumed in the past 24 hours
what are the advantages to 24 hour recall?
1) can be taken unannounced
2) best used for measuring group averages
true or false: although methodologically different, each approach to assessing dietary intake has the same goals
true
what are 5 challenges in assessing dietary intake?
1) unable to recall exactly what was eaten
2) under- and overestimation of portions
3) weekend intake differs from week
4) lack of commitment to recording intake
5) intake not a typical day
Anthropormetrics - Body Mass Index (BMI)
a method of estimating body fat ( does not measure % body fat)
BMI for underweight
< 18.5
BMI for normal weight
18.5 - 24.9
BMI for overweight
25 - 29.9
BMI for obese class I
30-34.9
BMI for obese class II
45 - 39.9
BMI for obese class III
> = 40
waist circumference
a measure of visceral obesity (fat sits right in abdominal cavity near pancreas liver and kidneys – comes into direct tonic with the hormones secreted by essential organs)