Lecture 4 Flashcards
What is a nutritional reference level (NRV)?
Are NRVs set for short term or long term health?
Who decides what the NRVs are and how is this done?
Can the NRVs change? How?
Why is the NRV for macronutrients given as a range rather than a single number?
What is the difference between an RDI and an AI?
RDI is a
Can a nutrient have both an RDI and an AI?
No, either we do know for sure (AI), or don’t know (AI).
Compare and contrast macronutrients with micronutrients.
Define EAR (Estimated Average Requirement )
A daily nutrient level estimated to meet the requirements of half the healthy individuals in a particular life stage and gender group
Define EER (Estimated Energy Requirement )
EER is the amount of energy that around 50% of the populations need.
Define RDI (Recommended Daily Intake )
The average daily dietary intake level that is sufficient to meet the nutrient requirements of nearly all (97–98 per cent) healthy individuals in a particular life stage and gender group.
EAR+2 standard deviations
For protein and micronutrients
Define AI (Average Intake)
The average daily nutrient intake level is based on observed or experimentally determined approximations or estimates of nutrient intake by a group (or groups) of apparently healthy people that are assumed to be ADEQUATE.
USED WHEN RDI CAN’T BE DETERMINED
Define UL (Upper Level of Intake)
The highest average daily nutrient intake level likely to pose no adverse health effects to almost all individuals in the general population. As intake increases above the UL, the potential risk of adverse effects increases.
Define AMDR (Acceptable Macronutrient Distribution Range)
For long term chronic health.
Define Atwater Factors
The amount of metabolisable energy per gram of macronutrient eaten.
