IAHC Nutrition and Lifestyle

Question 1

According to IAHC guidelines, which macronutrient is the primary source of energy for the brain and central nervous system?

Accepted Answer

Carbohydrates

Answer

Carbohydrates are the brain's preferred and primary fuel source, providing glucose that powers cognitive and nervous system functions.

Question 2

When coaching clients on sleep hygiene as part of a lifestyle intervention, IAHC recommends adults aim for how many hours of sleep per night?

Accepted Answer

7–9 hours

Answer

The CDC and IAHC-aligned guidelines recommend 7–9 hours of sleep per night for adults to support optimal health outcomes.

Question 3

A health coach working under IAHC principles encourages a client to adopt the 'plate method.' What does the plate method primarily involve?

Accepted Answer

Dividing the plate into portions of vegetables, protein, and grains

Answer

The plate method divides a standard plate into half vegetables, one-quarter lean protein, and one-quarter whole grains to guide balanced eating without calorie counting.

Question 4

Which lifestyle factor does IAHC recognize as having a bidirectional relationship with obesity?

Accepted Answer

Chronic stress

Answer

Chronic stress increases cortisol, which promotes fat storage and cravings, while obesity itself can elevate stress hormones, creating a bidirectional cycle.

Question 5

An IAHC-certified coach is helping a client reduce sodium intake. Which food category is typically the largest source of dietary sodium in the American diet?

Accepted Answer

Processed and packaged foods

Answer

Processed and packaged foods account for roughly 70% of sodium intake in the US diet, far exceeding salt added during cooking or at the table.

IAHC - International Association for Health Coaches Practice Test

IAHC - International Association for Health Coaches Practice Test

IAHC Nutrition and Lifestyle