NTP Food Sensitivities & Allergies 3

Question 1

Which enzyme deficiency is responsible for lactose intolerance?

Accepted Answer

Lactase

Answer

Lactase breaks down lactose into glucose and galactose; its deficiency allows undigested lactose to be fermented by gut bacteria, causing GI symptoms.

Question 2

The 'Big 9' major food allergens in the US include all of the following EXCEPT:

Accepted Answer

Corn

Answer

Corn is not among the FDA-recognized Big 9 allergens, which include milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soybeans, and sesame.

Question 3

Mast cell activation disorder (MCAD) differs from classical food allergy because it can be triggered by:

Accepted Answer

A wide range of foods, chemicals, and physical stimuli without IgE involvement

Answer

MCAD involves mast cell degranulation from diverse triggers including temperature, stress, and various foods without requiring IgE sensitization.

Question 4

FODMAPs worsen symptoms in IBS because they:

Accepted Answer

Are fermented by gut bacteria producing gas and osmotic fluid shifts

Answer

Fermentable oligosaccharides, disaccharides, monosaccharides, and polyols draw water into the bowel and are fermented, causing bloating and altered motility.

Question 5

Which test is considered the gold standard for diagnosing food allergies?

Accepted Answer

Double-blind placebo-controlled food challenge

Answer

The DBPCFC eliminates bias and is the most clinically reliable method to confirm or rule out a true food allergy.

(NTP) Nutritional Therapy Practitioner Practice Test

(NTP) Nutritional Therapy Practitioner Practice Test

NTP Food Sensitivities & Allergies 3