IIN Nutrition Science

Question 1

Which macronutrient is the body’s primary source of energy?

Accepted Answer

Carbohydrates

Answer

Carbohydrates are broken down into glucose, the main fuel for the body's cells and brain function.

Question 2

What role does dietary fiber play in digestion?

Accepted Answer

Supports digestive health

Answer

Fiber adds bulk to stool, helps maintain regular bowel movements, and supports gut health.

Question 3

Which vitamin is essential for calcium absorption?

Accepted Answer

Vitamin D

Answer

Vitamin D plays a key role in helping the body absorb and regulate calcium for bone health.

Question 4

Which mineral is necessary for oxygen transport in the blood?

Accepted Answer

Iron

Answer

Iron is a vital component of hemoglobin, the protein in red blood cells that carries oxygen.

Question 5

Which fat type is considered heart-healthy?

Accepted Answer

Unsaturated fats

Answer

Unsaturated fats, such as those found in olive oil, nuts, and avocados, support heart health.

(IIN) Institute for Integrative Nutrition Certification Practice Test