UNIT 1 Flashcards
Nutrition is defined as?
The study of the function and interaction of nutrients and the process by which the body uses them.
What are the 6 major classes of essential nutrients?
- Carbohydrates
- Proteins
- Fats
- Water
- Vitamins
- Minerals
An essential nutrient is not..
Synthesized by the body in sufficient quantity.
The greatest component in a complete chemical analysis of food would be…
Water
An organic compound can be defined as?
A substance or molecule containing carbon.
How can you detect a nutritional deficiency in its early stage?
By lab tests of urine or blood samples.
Which method of obtaining dietary information is best for large nutrition surveys?
Food frequency
Can a food composition table indicate the amount of iron actually absorbed by the body?
No, it only gives the nutrient values present in the food.
What nutrient source gives more than 4 cals per gram?
Plant fats
What is the AMDR for proteins?
10%-35%
What is the AMDR for carbs?
45%-65%
What is the AMDR for fats?
20%-35%
What is AMDR?
The recommended range of intake for a macronutrient.
What is nutritional genomics?
The science of how nutrients affect the activities of genes and how genes affect the activities of nutrients.
Calories are a unit of..
Energy
Grams are a unit of..
Mass
What are the four methods of assessing nutritional status?
- History
- Anthropometric measures
- Physical exam
- Lab tests
What is the method of assessing nutritional status: history?
Assessment of a person’s diet as well as medical history and its socioeconomic history.
What is the method of assessing nutritional status: anthropometric measures?
Physical characteristic of the body (height/weight).
What is the method of assessing nutritional status: Lab tests?
Can tell if there are any abnormalities long before there are any physical symptoms but can’t tell if they are from inadequate dietary intake or something else.
What are the four methods of collecting diet information?
- Diet history
- Food diary
- 24 hr food recall
- Food frequency
What is the method of collecting diet information: diet history?
Mostly used by health professionals. Can reveal a bunch of different influences. It’s a good method for planning a long-term healthy eating habit but is rarely used in research because it’s time consuming and expensive.
What is the method of collecting diet information: 24hr food recall?
Used mostly in research studies. Not good to find potential nutritional deficiencies.
What is the method of collecting diet information: Food frequency?
Used mostly in epidemiological studies where are large group of people are asked how often a specific food is consumed over a specific time.
What is a food composition database?
It lists the average nutrient composition of foods.
What are the 2 main uses of a food composition database?
- To determine the amount of nutrients a person consumes.
2. To identify foods that are high/low in specific nutrients.
