Question 1

Which of the following best describes the concept of 'food synergy' as it relates to nutrient intake?

Accepted Answer

Whole foods contain nutrients that work together within the organism to promote health, which cannot be replicated by isolated supplements.

Question 2

A dietary supplement label claims it is a 'high potency' source of vitamin C. According to FDA guidelines, what does this mean?

Accepted Answer

It provides at least 100% of the daily recommended intake for vitamin C.

Question 3

Which of the following is a structure-function claim that could legally appear on a dietary supplement label?

Accepted Answer

"Supports immune system health."

Question 4

Why are dietary supplements not required to undergo the same rigorous scientific testing as drugs before being marketed?

Accepted Answer

Supplements are considered foods, not drugs, and the FDA must prove harm before removing them from the market.

Question 5

A college student consumes an energy drink containing 80 grams of sugar in a 16-ounce can. How many Calories does the sugar provide? Use the formula $$	ext{Calories} = 	ext{grams of sugar} 	imes 4.$$

Accepted Answer

$$80 	imes 4 = 320$$ Calories

Question 6

Which population is at greatest risk for nutrient deficiencies according to the study materials?

Accepted Answer

Pregnant and nursing females, individuals with intestinal diseases, and those with limited access to wholesome foods.

Question 7

What is a potential risk of consuming high doses of zinc lozenges for an extended period?

Accepted Answer

Interference with copper absorption, leading to copper deficiency.

Question 8

Which of the following statements about artificial sweeteners is correct?

Accepted Answer

Nonnutritive sweeteners cannot be broken down by normal metabolic processes to release energy.

Question 9

A patient with iron-deficiency anemia is advised to increase their intake of vitamin C-rich foods. Why?

Accepted Answer

Vitamin C enhances the absorption of nonheme iron from plant sources.

Question 10

Which of the following is a real-world example of population-level supplementation?

Accepted Answer

Adding iodine to table salt to prevent goiter in the general population.

Question 11

A supplement label states: 'This product is not intended to diagnose, treat, cure, or prevent any disease.' Why is this disclaimer required?

Accepted Answer

Because structure-function claims are not evaluated by the FDA and cannot claim to prevent or cure disease.

Question 12

Which of the following best explains why whole foods are generally preferred over supplements for meeting nutrient needs?

Accepted Answer

Nutrients in whole foods interact synergistically to promote health, which is not replicated by supplements.

Question 13

Which of the following is a plausible adverse effect of excessive caffeine intake from energy drinks?

Accepted Answer

Increased risk of anxiety, insomnia, and elevated blood pressure.

Question 14

A college student follows a poorly planned plant-based diet without supplements. Which nutrient deficiencies are they most at risk for?

Accepted Answer

Vitamin B12, iron, and zinc deficiencies.

Question 15

Which of the following best describes the difference between authorized and qualified health claims on supplement labels?

Accepted Answer

Authorized health claims are based on extensive scientific research and FDA approval, while qualified health claims are not as thoroughly investigated and not evaluated by the FDA.

Question 16

Which of the following is a common adulterant found in mislabeled dietary supplements that can compromise safety?

Accepted Answer

Anabolic steroids.

Question 17

A supplement contains 200% of the Daily Value for vitamin B6. What is a potential risk of consuming this supplement daily?

Accepted Answer

Synthetic forms of B vitamins can be toxic at high doses, potentially causing nerve damage.

Question 18

Which of the following best explains why energy drinks are sometimes classified as both foods and supplements?

Accepted Answer

They may contain nutrients, stimulants, and other substances not generally recognized as safe in foods.

Question 19

A patient is diagnosed with goiter due to iodine deficiency. Which public health intervention has been most effective in reducing this condition globally?

Accepted Answer

Fortification of table salt with iodine.

Question 20

Which of the following best describes the role of B vitamins in energy metabolism?

Accepted Answer

B vitamins are part of coenzymes that help transfer energy from macronutrients to ATP.

Dietary Supplements, Deficiency Prevention, and Population Health: A Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards