Nutrient requirements

Question 1

What does EAR stand for

Answer 1

Estimated average requirement

Question 2

What is the EAR a measure of

Answer 2

Estimated average requirement of energy or a nutrient for a population where approximately 50% will require more and 50% will require less (baseline intake for energy on nutrition labels)

Question 3

What does RNI stand for

Answer 3

Reference nutrient intake

Question 4

What is the RNI a measure of

Answer 4

The amount of a nutrient that meets nearly all (97.5%) of a population daily requirement (two SDs to right of mean/median) used as baseline value on nutrition labels for all nutrients apart from energy

Question 5

What does the LRNI stand for

Answer 5

Lower reference nutrient intake

Question 6

What is the LRNI a measure of

Answer 6

The amount of a nutrient that will meet the needs of the minority of the population who have a lower requirement (2.5% of population) (2SDs to left)

Question 7

What is safe intake

Answer 7

A range of intakes for almost all individuals needs but not so high to cause undesirable effects

Question 8

When is safe intake used

Answer 8

For nutrients where there is insufficient information to estimate requirements more precisely

Question 9

What is the UL

Answer 9

Tolerable upper intake level that is likely to pose no risk of adverse effects in almost all individuals in a population

Question 10

What is the NOAEL and LOAEL

Answer 10

the no observed adverse effect level (highest intake with no effect) and lowest observed adverse effect level (lowest intake with effect) of a nutrient