Chapter 3: Dietary Assessment Flashcards
measuring the quantity of the individual foods and beverages consumed
provide information on quantity and quality of diets of individuals or population groups in an area for a given period of time
dietary assessment
can be assessed at the national/community, household, and individual levels
can also be applied in hospital and emergency settings
food consumption
measuring food consumption at the national level
comprehensive picture of the pattern of a country’s food supply during a specified reference period, calculated from the annual production of food; changes in stocks, imports and exports; and distribution of food over various uses within the country
food balance sheets (fbs)
are studies designed to establish by chemical analysis the dietary intake of food contaminants by a person consuming a typical diet
can be used to monitor and evaluate intakes of macronutrients and vitamin in populations
total diet studies
purchasing of food items which comprise a part of the average diet of the selected age and sex group of interest from retail outlets in representative cities/municipalities of a country
market based studies
preparing the foods as table-ready according to normal household procedures
market based studies
compiling a list of the most commonly consumed food items from the national food consumption survey
individual food items
collecting samples of each food item (sometimes more than once a year), from major cities/municipalities situated in certain regions of the country
individual food items
collecting a duplicate of all foods and beverages consumed over a 24hr period in a container for each participant of the group suspected to be at risk for high levels of dietary contaminants
duplicate portion studies
is association with laser scanning devices permit food purchases to be monitored at store checkout counters
universal product codes
total amount of food available for consumption in the household, excluding that eaten away from home unless taken from the home
household food consumption
include nutrient values derived from quantitative analysis of samples of each food
data should be representative of the average composition of particular food stuff on a year round, nationwide basis
food composition databases
usually derived directly or indirectly from associated databases
directory is updated regularly and contains information on all the major national and international databases and food tables
food composition table
categorizes food and beverages according to their cho, chon, fat, alcohol, and energy contents and lists them in categories
these lists sometimes referred to as “exchange lists” because foods within each of the groups on the list provide, on the average similar number of kcal
food exchange system
