Diet Macronutrients 3

Question 1

What happens when carbohydrate intake is severely restricted and the body shifts to fat as its primary fuel?

Accepted Answer

Ketosis

Answer

Ketosis occurs when the liver produces ketone bodies from fat as an alternative fuel source when glucose is scarce.

Question 2

Which of the following is a primary function of dietary fiber, technically a type of carbohydrate?

Accepted Answer

Promoting digestive health and satiety

Answer

Dietary fiber supports digestive health, feeds beneficial gut bacteria, and increases satiety without adding significant calories.

Question 3

What term describes the daily minimum amount of a nutrient needed to prevent deficiency in healthy individuals?

Accepted Answer

Recommended Dietary Allowance (RDA)

Answer

The RDA is the daily intake level sufficient to meet the needs of nearly all healthy individuals in a specific group.

Question 4

Which macronutrient is most critical for preserving lean muscle mass during a calorie-deficit diet?

Accepted Answer

Protein

Answer

Adequate protein intake during caloric restriction provides amino acids that help spare muscle tissue from being broken down for energy.

Question 5

Saturated fats are generally found in greatest quantities in which type of food?

Accepted Answer

Fatty beef

Answer

Fatty beef is high in saturated fat, which is predominantly found in animal products, particularly red meat and full-fat dairy.

Diet Practice Test