ppwt 1 - DRI Flashcards
RDA is determined by
experimentation in healthy people
RDA must account for
- individual variability
- biovailability
- sex and age differences
- physiological state
rda is set … above the EAR
2 SD
What is the new concept for RDA
prevent chronic disease
RDA is developed to maintain good health and avoid deficiency but not to
- overcome nutrient deficiencies
-recover form illness
RDA is developed to maintain good health and avoid deficiency but not to
- overcome nutrient deficiencies
-recover form illness
the DRIs differ conceptually from the former RDAs and RNIs
- where possible, reduction in the risk of chronic degenerative disease is included in the formulation of the recommendation
- concepts of probability and risk explicitly underpin the determination of the DRIs and applications
- upper levels of intake are established
- food components that may not meet the traditional concept of a nutrient are considered
AIs is used for
is used insteaf of RDAs when an EAR cannot be calculated
how is AI estimated
- observed or experimentally determined approximation
- estimates of nutrient intake by a group of healthy people that are assumed to be adequate
- used when RDA connot be determed
if the individual intake is > AI what happens and what if it is lower?
higher: diet is certainly adequate
lower: no quantitative estimate can be made of the probability of nutrient adequacy bc the point where risk increase cannot be determined
dietary guidelines aims what
promote health and prevent diseases at every stage of life
what are the 3 fundamentals premises of dietary guidelines
- diet related chronic diseases very prevalent
- nutrients and food not consumed in isolation
- healthy dietary patterns encourage at every life stage
dietary guidelines can target what
- target to improve behaviour towards a future goal for the population (less fat)
- target the intake of every man, women and child
which is not equal to RDA that is amounts of nutrients needed and it separates for child, women and men
what are some guidelines
- follow a healthy eating pattern across the lifespan
- focus on variety, nutrient density and amount
- limit calories form added sugars, st and reduce sodium
- shift to healthier food and beverage choices
- support healthy eating patterns for all
what are the key components of healthy eating
- adequacy
- balance
- variety
- moderation