IIN Sports & Performance Nutrition 3

Question 1

Beetroot juice is used as a performance ergogenic because it is high in which compound?

Accepted Answer

Dietary nitrates

Answer

Beetroot juice is rich in dietary nitrates, which convert to nitric oxide in the body, improving blood flow and oxygen efficiency during exercise.

Question 2

An IIN health coach working with a recreational runner notices signs of relative energy deficiency in sport (RED-S). The first priority is to:

Accepted Answer

Increase overall caloric intake to match energy expenditure

Answer

RED-S is caused by a chronic energy deficit, so restoring energy availability by increasing caloric intake is the foundational first step.

Question 3

Which fat-soluble vitamin plays a critical role in calcium absorption and bone health, making it especially relevant for weight-bearing athletes?

Accepted Answer

Vitamin D

Answer

Vitamin D is essential for calcium absorption and bone mineralization, supporting stress fracture prevention in weight-bearing athletes.

Question 4

During a long trail run, an athlete develops muscle cramps. Beyond dehydration, which electrolyte imbalance is most commonly implicated?

Accepted Answer

Sodium deficit

Answer

Sodium deficit from sweat loss is the electrolyte imbalance most strongly associated with exercise-associated muscle cramping during prolonged activity.

Question 5

Which plant-based protein source provides all essential amino acids and is considered a complete protein?

Accepted Answer

Quinoa

Answer

Quinoa is one of the few plant foods that contains all nine essential amino acids in adequate amounts, making it a complete protein.

(IIN) Institute for Integrative Nutrition Certification Practice Test

(IIN) Institute for Integrative Nutrition Certification Practice Test

IIN Sports & Performance Nutrition 3