Question 1

Which of the following best describes the main advantage of using the scientific method in nutrition research?

Accepted Answer

It provides a systematic, unbiased approach to investigating questions and drawing evidence-based conclusions.

Question 2

A friend tells you they are following a diet recommended by a popular social media influencer. Based on principles of credible nutrition advice, which professional should they consult for reliable information?

Accepted Answer

A registered dietitian nutritionist (RDN)

Question 3

Which of the following statements about body fat distribution is correct?

Accepted Answer

Apple-shaped obesity is associated with more visceral fat and higher risk of cardiovascular disease.

Question 4

Which equation correctly represents Body Mass Index (BMI)?

Accepted Answer

$$BMI = \frac{weight\ (kg)}{height\ (m)^2$}$$

Question 5

A person consumes 2,500 kcal per day but only expends 2,000 kcal per day. According to the concept of energy balance, what is the likely outcome?

Accepted Answer

They will gain weight due to positive energy balance.

Question 6

Which hormone is primarily responsible for increasing hunger and stimulating appetite?

Accepted Answer

Ghrelin

Question 7

A student is trying to lose weight by eating only highly processed foods labeled as 'low-fat.' Based on nutrition science, what is a likely outcome of this approach?

Accepted Answer

They may struggle with satiety and overconsume calories, making weight loss difficult.

Question 8

Which of the following is a correct statement about basal metabolic rate (BMR)?

Accepted Answer

BMR is higher in individuals with more muscle mass.

Question 9

During a high-intensity sprint, which fuel source is primarily used by the body?

Accepted Answer

Glycogen

Question 10

Which of the following best describes the role of osteoclasts in bone health?

Accepted Answer

They break down bone tissue, releasing minerals into the blood.

Question 11

Which organ is NOT directly involved in the synthesis of active vitamin D in the body?

Accepted Answer

Pancreas

Question 12

Which of the following is an example of a naturally occurring sugar?

Accepted Answer

Lactose in milk

Question 13

Which of the following statements about antioxidants is correct?

Accepted Answer

Antioxidants neutralize free radicals, reducing oxidative damage.

Question 14

A college student is considering taking a dietary supplement labeled as an 'excellent source' of vitamin C. According to supplement labeling regulations, what does this mean?

Accepted Answer

The supplement provides at least 20% of the Daily Value (DV) for vitamin C.

Question 15

Which of the following is a food source of heme iron?

Accepted Answer

Chicken breast

Question 16

Which nutrient is especially important for pregnant women to prevent neural tube defects in the developing fetus?

Accepted Answer

Folate

Question 17

Which age group is least likely to meet the Recommended Dietary Allowance (RDA) for calcium?

Accepted Answer

Teenagers

Question 18

Which of the following best describes food synergy?

Accepted Answer

The enhanced health benefits that result from consuming a variety of foods together.

Question 19

Which of the following is a potential risk of excessive antioxidant supplementation?

Accepted Answer

It can increase oxidative damage and interfere with the body's natural defense mechanisms.

Question 20

How often are the USDA Dietary Guidelines for Americans reissued?

Accepted Answer

Every 5 years

NSD 225 Exam 2 Study Guide – Step-by-Step Guidance

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