Dietary Reference Values Flashcards
What are nutritional requirements?
The amount of each nutrient needed to stay healthy and reduce the risk of diet-related diseases.
Do nutritional requirements vary between individuals?
Yes, they vary between individuals and life stages.
Who needs more iron, women of childbearing age or men?
Women of childbearing age need more iron than men.
What is the purpose of meeting nutritional requirements?
To stay healthy and reduce the risk of diet-related diseases.
Fill in the blank: The amount of each nutrient needed is called the _______.
[nutritional requirement]
True or False: Nutritional requirements are the same for all nutrients.
False
What factors contribute to variations in nutritional requirements?
Factors include:
* age
* gender
* level of physical activity
* state of health
Individual requirements of each nutrient can differ significantly based on these factors.
True or False: Everyone absorbs nutrients with the same efficiency.
False
Some people absorb or utilize nutrients less efficiently than others.
Fill in the blank: Individual requirements of each nutrient are related to _______.
[age, gender, level of physical activity, state of health]
These factors collectively influence nutritional needs.
What might cause someone to have higher than average nutritional requirements?
Less efficient absorption or utilization of nutrients
Individuals who do not absorb or utilize nutrients effectively may need more nutrients.
What are Dietary Reference Values (DRVs)?
Estimated dietary requirements for specific population groups in the UK.
Based on the 1991 COMA report on food energy and nutrients.
Who published the 1991 report on Dietary Reference Values in the UK?
Committee on Medical Aspects of Food and Nutrition Policy (COMA).
What committee has superseded COMA?
Scientific Advisory Committee on Nutrition (SACN).
Has SACN frequently changed the DRVs since its establishment?
No, in most cases SACN has not identified a need to change the DRVs.
Fill in the blank: The Dietary Reference Values (DRVs) are based on advice from the _______.
Committee on Medical Aspects of Food and Nutrition Policy (COMA).
True or False: SACN regularly updates the DRVs based on new evidence.
False.
What do DRVs represent?
Estimates of the requirements for groups of people
DRVs are not recommendations or goals for individual people.
List the three types of estimates included in DRVs.
- Estimated Average Requirements (EARs)
- Reference Nutrient Intakes (RNIs)
- Lower Reference Nutrient Intakes (LRNIs)
Each type serves a different purpose in assessing nutrient needs.
What does EAR stand for?
Estimated Average Requirement
What is the purpose of the Estimated Average Requirement (EAR)?
It is an estimate of the average requirement for energy or a nutrient.
What percentage of a group will require less than the Estimated Average Requirement (EAR)?
Approximately 50%
What percentage of a group will require more than the Estimated Average Requirement (EAR)?
Approximately 50%
Fill in the blank: The Estimated Average Requirement (EAR) indicates that _____ of a group will require less and _____ will require more.
50%; 50%
What does RNI stand for?
Reference Nutrient Intake
What percentage of a group does the RNI ensure nutrient needs are met?
97.5%
What types of nutrients does the RNI provide recommendations for?
- Protein
- Vitamins
- Minerals
The RNI is used for recommendations on which nutrients?
- Protein
- Vitamins
- Minerals
True or False: The RNI is designed to meet the needs of all individuals in a group.
False
Fill in the blank: The RNI is the amount of a nutrient that is enough to ensure that the needs of nearly all the group (____%) are being met.
97.5
What does LRNI stand for?
Lower Reference Nutrient Intake
What is the LRNI?
The amount of a nutrient that is enough for only the small number of people who have low requirements (2.5%)
What percentage of people typically need more than the LRNI?
97.5%
Fill in the blank: The LRNI is sufficient for only ______ of the population.
2.5%
True or False: The majority of people have nutrient requirements that are lower than the LRNI.
False
What are Dietary Reference Values (DRVs)?
DRVs are important for ensuring adequate intakes of energy and nutrients throughout life.
DRVs help prevent malnutrition and address health concerns linked to inadequate nutrition.
How do DRVs assist individuals?
DRVs assist in preventing malnutrition.
Malnutrition can be linked to many health concerns and illnesses.
True or False: Malnutrition is not linked to health concerns.
False
Many health concerns and illnesses may be linked to malnutrition.
What is the purpose of RNI in dietary reference values?
Reference Nutrient Intake
RNI is often used as a reference amount for population groups.
What is the primary use of EARs for energy?
To reflect the present lifestyles and activity levels of the UK population.
Fill in the blank: RNI is often used as a reference amount for _______.
[population groups]
True or False: LRNI is used as a measure of nutritional adequacy.
False
LRNI is used to measure nutritional inadequacy.
