The average daily dietary intake for a healthy individual for a given life stage and gender group is called:

RRB Nsg. Superintendent-2026 (Shift -3rd)

Applied Nutrition & Dietetics

Easy

Appeared in: RRB Nsg. Superintendent-2026 (Shift -3rd)

Explanation

Recommended Dietary Allowance (RDA) is the average daily intake level sufficient to meet the nutrient needs of nearly all (97-98%) healthy individuals.
It is specific to a particular life stage and gender group, making it the standard for individual dietary planning.
The RDA is scientifically derived from the Estimated Average Requirement (EAR) and is set at two standard deviations above the EAR to cover the vast majority of the population.

Option A: Adequate Intake (AI) is used when there is insufficient scientific evidence to establish an RDA. It is an approximation based on observed intakes in a healthy population, not a calculated requirement for nearly all individuals.
Option B: The Estimated Average Requirement (EAR) is the intake level that meets the needs of only 50% of the population. It is a statistical midpoint used for research and assessing group intakes, not for advising individuals.
Option C: The Tolerable Upper Intake Level (UL) represents the maximum daily intake of a nutrient that is unlikely to cause adverse health effects. It is a safety ceiling, not a recommended target for intake.

Visual 1: Chart - A bell curve diagram illustrating the relationship between EAR, RDA, and UL. The EAR is at the 50th percentile, the RDA is at the 97.5th percentile, and the UL is shown as a separate threshold for toxicity risk.
Visual 2: Table - A comparative table showing the definitions and primary uses of EAR, RDA, AI, and UL side-by-side for easy comparison.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Dietary Reference Intakes (DRIs) as background academic context rather than a clinical decision trigger.
Nurses use RDAs to assess patient dietary histories, provide nutritional education, and plan meals for patients to ensure they meet their nutritional needs and prevent deficiencies.
RDAs are crucial for developing public health policies, food assistance programs, and for the nutritional labeling of foods.
What if a patient is pregnant? Her RDAs for nutrients like folic acid, iron, and protein will be significantly higher than for a non-pregnant woman of the same age to support fetal growth and development.

How to Approach the Question

First, identify the key phrases in the question: 'average daily dietary intake,' 'healthy individual,' and 'life stage and gender group.'
Recognize that this is a definition-based question asking for a specific term from the field of nutrition.
Recall or look up the definitions of the four main Dietary Reference Intakes (DRIs): EAR, RDA, AI, and UL.
Compare the definition in the question to the definitions of the options. The question asks for the value that applies to 'nearly all' healthy individuals, which is the key characteristic of the RDA.
Eliminate the other options based on their specific definitions: EAR (50% of the population), AI (used when RDA is unavailable), and UL (maximum safe level).

Concept Tested & Keywords

Concept Tested: Dietary Reference Intakes (DRIs)
Stem keywords: average daily dietary intake, healthy individual, life stage, gender group
Lead-in keywords: is called

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