Posted by Duncan on Aug 1st, 2013

What are Nutrient Reference Values?

NRVs or Nutrient Reference Values are the amount of particular nutrients an individual or group may require.

Definitions adapted from the FNB:IOM DRI process

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.
RDI (Recommended Dietary 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.
AI (Adequate Intake) (used when an RDI cannot be determined)
The average daily nutrient intake level 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.
EER (Estimated Energy Requirement)
The average dietary energy intake that is predicted to maintain energy balance in a healthy adult of defined age, gender, weight, height and level of physical activity, consistent with good health. In children and pregnant and lactating women, the EER is taken to include the needs associated with the deposition of tissues or the secretion of milk at rates consistent with good health.
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.

To read more go to the NRV website here

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