SIBO Quiz

Is SIBO testing right for you?

Take my SIBO QUIZ to find out if a SIBO test is recommended for you.



Do I Have SIBO?

Answer the following questions and tally your answers below

Chronic diarrhea

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Chronic constipation

0 - No, symptom does not occur

1- Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Alternating constipation and diarrhea

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Burping after meals, acid reflux/GERD

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Respiratory symptoms - asthma, weezing, sleep apnea

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 -  Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Bloating within 1 hour after meals

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Abdominal gurgling, distension, bloating (“6 months pregnant” looking) a few hours after meals

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Itchiness, rash, eczema

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Digestive symptoms improve while on antibiotics (even for unrelated issues)

0 - No  

3 - Yes 


Worsening of gut symptoms when using fiber products

0- No

3 - Yes


Prebiotics (such as FOS, chicory root, inulin, etc) in probiotic formulas make symptoms worse

0 - No

3 - Yes  


Symptoms of gas, bloating, distension worsen when consuming garlic, onions, cruciferous vegetables, eggs

0 - No

3 - Yes


Lactose intolerance

0 - No

2 - Yes  


Fructose intolerance (artichokes, asparagus, peas, dried fruit, pears, apples)

0 - No

2 - Yes


Fibromyalgia, body/joint pain symptoms

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Frequent bladder infections, UTI

0 - No

2 - Yes


Interstitial cystitis (chronic bladder pain)

0 - No

2 - Yes


Restless Leg Syndrome

0 - No

2 - Yes


Have had gut problems since a bout of gastroenteritis, food poisoning, travel abroad

0 - No

3 - Yes


Chronic B12 deficiency, macrocytic anemia

0 - No

2 - Yes


Feeling cold, tingling in extremities

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Chronic low iron levels with no apparent cause, anemia

0 - No

2 - Yes



Extreme fatigue, exhaustion, brain fog

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Foul smelling gas and/or breath- rotting fruit, cow pastures, sulphur/rotten egg smells

0 - No, symptom does not occur1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


Diabetes or early insulin resistance/pre-diabetes diagnosis

0 - No

2 - Yes


Hyper or hypothyroid conditions, Hashimoto's diagnosis

0- No

2 - Yes


Other autoimmune disease diagnosis

0 - No

2 - Yes


Gluten intolerant, wheat/gluten sensitive

0 - No

2 - Yes


Celiac disease or gluten intolerance and off gluten but still experiencing gut symptoms

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 - Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)


History of proton pump inhibitors, acid blockers, antacids

0 - No

3 - Yes


History of antibiotic use, NSAIDs, birth control pills

0 - No

3 - Yes


Gallbladder removal, cholecystectomy

0 - No

3 - Yes


Other abdominal surgery or trauma

0 - No

3 - Yes


High stress (work, relationships, home/work environment, poor sleep)

0 - No, symptom does not occur

1 - Yes, minor or mild symptom, rarely occurs (monthly)

2 -  Moderate symptom, occurs occasionally (weekly)

3 - Severe symptom, occurs frequently (daily)



Total points

0 - 14    Not likely SIBO, possible poor eating hygiene or food sensitivities

15 - 22  Possibly mild case of SIBO or other microbial imbalance

23 - 44  Likely SIBO or other microbial imbalance

45+ Highest probability of SIBO and/or other co-infections


Order a SIBO Breath Test to find out more about what’s causing your symptoms.

Insurance receipts are provided under Naturopathic Care

(questionnaire adapted from The SIBO Doctor, updated & revised 2022)