IIN Gut Health & Microbiome 3

Question 1

Which probiotic strain is most commonly associated with vaginal health and prevention of urogenital infections?

Accepted Answer

Lactobacillus crispatus

Answer

Lactobacillus crispatus is the dominant species in a healthy vaginal microbiome and helps maintain an acidic pH that protects against pathogens.

Question 2

What is the term for the collection of all microbial genes found in the human gut?

Accepted Answer

Metagenome

Answer

The metagenome refers to the collective genetic material (all genes) of all microorganisms inhabiting the gut, providing functional insight into microbial communities.

Question 3

A client presents with frequent loose stools after taking antibiotics. Which probiotic has the most evidence for antibiotic-associated diarrhea?

Accepted Answer

Saccharomyces boulardii

Answer

Saccharomyces boulardii, a beneficial yeast, has strong clinical evidence for preventing and treating antibiotic-associated diarrhea and is unaffected by antibiotic treatment.

Question 4

Which dietary pattern has the strongest research support for promoting microbiome diversity?

Accepted Answer

Mediterranean diet

Answer

The Mediterranean diet, rich in diverse plant foods, fiber, and fermented foods, consistently shows the strongest association with increased gut microbiome diversity.

Question 5

Zonulin is a protein biomarker that, when elevated, indicates increased:

Accepted Answer

Intestinal permeability

Answer

Zonulin regulates tight junction permeability, and elevated serum zonulin levels are a biomarker for increased intestinal permeability (leaky gut).

(IIN) Institute for Integrative Nutrition Certification Practice Test

(IIN) Institute for Integrative Nutrition Certification Practice Test

IIN Gut Health & Microbiome 3