P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
Jersey College Nutrition
Chapter 1 Questions &
Answers 2026-2027 |
Complete Course Review
(Rationales)
Verified Answers Exam Ready With Rationales
61 QUESTIONS
DOCUMENT OVERVIEW
This document provides 61 verified questions with correct answers and detailed rationales focusing on
nutrition concepts. It serves as a comprehensive resource for understanding key nutritional principles and
their applications in health. Students can utilize this material for effective study, thorough review, and
preparation for certification exams in the field of nutrition.
CONTENTS
Dietary Reference Intakes Q1–Q14
Nutrient Composition Q15–Q26
Nutrition Concepts Q27–Q37
Macronutrients Q38–Q47
Vitamins and Minerals Q48–Q58
Research in Nutrition Q59–Q61
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 61
Different types of DRIs
CORRECT ANSWER
1. Estimate Average Requirement (EAR)
2. Recommended Dietary Allowance (RDA)
3. Adequate Intake (AI)
4. The Tolerable Upper Intake Level (UL)
RATIONALE
DRIs provide a framework for assessing nutrient needs, with each type serving a specific purpose: EAR estimates the
nutrient intake for half the population, RDA meets the needs of most individuals, AI is set when evidence is insufficient
for RDA, and UL indicates the maximum safe intake level to prevent toxicity. Understanding these categories is critical
for developing dietary guidelines and ensuring optimal nutrition.
Q2 QUESTION 2 OF 61
Best food source for minerals
CORRECT ANSWER
Fruits, vegetables, dairy and meats.
RATIONALE
Fruits and vegetables provide a wide range of essential minerals, including potassium and magnesium, while dairy and
meats supply calcium, phosphorus, and iron, for various physiological functions. A balanced intake from these food
groups ensures adequate mineral nutrition necessary for optimal health and metabolic processes.
Q3 QUESTION 3 OF 61
Dietary Reference Intakes (DRIs)
CORRECT ANSWER
The standards defining the recommended intake values for various nutrients shared by the US and Canada.
RATIONALE
Dietary Reference Intakes (DRIs) provide a comprehensive framework for assessing nutrient needs, ensuring adequate
intake levels to prevent deficiencies and promote optimal health across populations. These standards are collaboratively
established by authoritative health organizations in the US and Canada, reflecting the latest scientific research on
nutrition.
Page 2
, Q4 QUESTION 4 OF 61
Estimate Average Requirement (EAR)
CORRECT ANSWER
The average daily intake level estimated to meet the needs of half the people in a certain group. Used to calculate
RDA.
RATIONALE
The Estimated Average Requirement (EAR) serves as a benchmark for determining nutrient intake levels sufficient for
half the population within a specific group, facilitating the calculation of the Recommended Dietary Allowance (RDA) to
address broader dietary needs. This concept emphasizes the importance of population-based nutritional assessment in
public health planning.
Q5 QUESTION 5 OF 61
Recommended Dietary Allowance (RDA)
CORRECT ANSWER
The average daily intake level estimated ton meet the needs of h=nearly all people in a certain group.
RATIONALE
RDA reflects the average nutrient intake sufficient to meet the requirements of 97-98% of healthy individuals in a
specific demographic, ensuring adequate nutrition and preventing deficiencies. This standard is crucial for dietary
planning and public health guidelines.
Q6 QUESTION 6 OF 61
Adequate Intake (AI)
CORRECT ANSWER
The average daily intake assumed to be adequate. When EAR can not be determined.
RATIONALE
Adequate Intake (AI) serves as a guideline for nutrient intake when sufficient data to establish an Estimated Average
Requirement (EAR) is lacking, ensuring that individuals receive enough essential nutrients for health. This concept
emphasizes the need for dietary standards that accommodate variability in nutrient needs across populations.
Q7 QUESTION 7 OF 61
Tolerable Upper Intake Level (UL)
Page 3