ACBN Trivia 4

Question 1

Which macronutrient provides the most calories per gram?

Accepted Answer

Fat (9 kcal/g)

Answer

Fat provides 9 kcal per gram, making it the most energy-dense macronutrient, more than double that of carbohydrates or protein.

Question 2

The body's preferred fuel for the brain under normal dietary conditions is:

Accepted Answer

Glucose

Answer

The brain relies almost exclusively on glucose for fuel under normal (non-fasting) conditions because fatty acids cannot cross the blood-brain barrier.

Question 3

Which food label claim requires that a product contain no more than 0.5 g of fat per serving according to FDA regulations?

Accepted Answer

Fat free

Answer

The FDA defines 'fat free' as containing less than 0.5 g of fat per serving, allowing trace amounts that round to zero.

Question 4

Pellagra is a niacin deficiency disease classically characterized by the 'four Ds': dermatitis, diarrhea, dementia, and which fourth condition?

Accepted Answer

Death

Answer

Untreated pellagra progresses to the fourth 'D' — death — making early identification and niacin repletion critical.

Question 5

Which hormone, secreted by adipose tissue, signals satiety to the hypothalamus and helps regulate long-term energy balance?

Accepted Answer

Leptin

Answer

Leptin is released by fat cells in proportion to fat mass and suppresses appetite by acting on hypothalamic receptors to signal fullness.

ACBN - Nutritionist Exam Practice Test

ACBN - Nutritionist Exam Practice Test

ACBN Trivia 4