Skip to content

Impact of Diet on Functional Gastrointestinal Symptoms

Impact of Diet on Functional Gastrointestinal Symptoms; a National Population Based Survey

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03102411
Enrollment
1881
Registered
2017-04-05
Start date
2017-03-09
Completion date
2017-09-15
Last updated
2019-01-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastrointestinal Disorder, Functional

Brief summary

This cross-sectional survey study is to determine the prevalence of functional gastrointestinal (GI) disorders in the general population and to describe common triggers for food-related GI symptoms.

Detailed description

Functional gastrointestinal disorders, involving symptoms such as gas/bloating, diarrhea, constipation and abdominal pain, are estimated to impact between 35 and 45 million Americans, an overwhelming 15-20% of the population. These symptoms are responsible for upwards of 20 billion dollars in healthcare costs and extensive loss of quality of life for sufferers. Moreover, many patients suffer in silence, with 67% of subjects waiting more than a year before treatment, and 11% waiting over 10 years. Irritable bowel syndrome is the most prevalent functional gastrointestinal disorder, and several recent studies support the idea that dietary modifications may be key to alleviating this condition. The purpose of this study is to document gastrointestinal symptoms among the US population, as well as to ascertain awareness and utilization of dietary treatments that exist.

Interventions

None listed

Sponsors

TriHealth Inc.
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

\-

Exclusion criteria

* Visual impairment * Inability to read * Inability to understand English * Inability to use a computer to respond to questions.

Design outcomes

Primary

MeasureTime frameDescription
Most Common Triggers for Food-related GI Symptoms (Top 5)During the past 3 months before the surveyPercentages for foods chosen as triggers ( a subject can check more than one answer - Bread, Oats, Chili, Corn, Onion, Garlic, Beans, Chocolate, Fried or greasy foods, Eggs, Soy, Red meat, Fish or shellfish, Dairy products, Nuts and seeds, Apples, Bananas, Citrus fruit, Alcohol, Coffee, Carbonated drinks, Sugar-free gum)

Secondary

MeasureTime frameDescription
Self-reported Functional GI DisordersDuring the past 3 months before the surveyPercentages of self-reported functional GI disorders ( a subject can check more than one answer - Acid reflux (GERD), Irritable bowel syndrome (IBS), Celiac disease, Inflammatory bowel disease - Crohn's or Ulcerative Colitis, Diverticulities, Gastroparesis, Leaky gut, small intestinal bacterial overgrowth (SIBO), None of the above)

Countries

United States

Participant flow

Recruitment details

The online survey took place from 3/9/2017 to 3/11/2017 through SurveyMonkey® (Palo Alto, CA, USA). The survey was distributed securely to a representative sample of the US population. 1881 subjects responded to the survey with 1718 completing all the questions (91% completers).

Participants by arm

ArmCount
GI Symptoms Survey Population
The Survey participants are men and women between the ages of 18 and 80 in the United States
1,718
Total1,718

Baseline characteristics

CharacteristicGI Symptoms Survey Population
Age, Customized
18-30 years
347 Participants
Age, Customized
31-45 years
506 Participants
Age, Customized
46-60 years
502 Participants
Age, Customized
61-80 years
351 Participants
Age, Customized
Prefer not to answer
12 Participants
Race/Ethnicity, Customized
African American/Black
111 Participants
Race/Ethnicity, Customized
Asian
70 Participants
Race/Ethnicity, Customized
Caucasian/White
1365 Participants
Race/Ethnicity, Customized
Hawaiian or Pacific Islander
10 Participants
Race/Ethnicity, Customized
Native American
21 Participants
Race/Ethnicity, Customized
Other
100 Participants
Race/Ethnicity, Customized
Prefer not to answer
41 Participants
Region of Enrollment
United States
1718 participants
Sex: Female, Male
Female
911 Participants
Sex: Female, Male
Male
799 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 0
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Most Common Triggers for Food-related GI Symptoms (Top 5)

Percentages for foods chosen as triggers ( a subject can check more than one answer - Bread, Oats, Chili, Corn, Onion, Garlic, Beans, Chocolate, Fried or greasy foods, Eggs, Soy, Red meat, Fish or shellfish, Dairy products, Nuts and seeds, Apples, Bananas, Citrus fruit, Alcohol, Coffee, Carbonated drinks, Sugar-free gum)

Time frame: During the past 3 months before the survey

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GI Symptom Survey PopulationMost Common Triggers for Food-related GI Symptoms (Top 5)Fried or greasy foods881 Participants
GI Symptom Survey PopulationMost Common Triggers for Food-related GI Symptoms (Top 5)Dairy products494 Participants
GI Symptom Survey PopulationMost Common Triggers for Food-related GI Symptoms (Top 5)Beans469 Participants
GI Symptom Survey PopulationMost Common Triggers for Food-related GI Symptoms (Top 5)Chili peppers460 Participants
GI Symptom Survey PopulationMost Common Triggers for Food-related GI Symptoms (Top 5)Alcohol354 Participants
Secondary

Self-reported Functional GI Disorders

Percentages of self-reported functional GI disorders ( a subject can check more than one answer - Acid reflux (GERD), Irritable bowel syndrome (IBS), Celiac disease, Inflammatory bowel disease - Crohn's or Ulcerative Colitis, Diverticulities, Gastroparesis, Leaky gut, small intestinal bacterial overgrowth (SIBO), None of the above)

Time frame: During the past 3 months before the survey

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GI Symptom Survey PopulationSelf-reported Functional GI DisordersAcid reflux (GERD)411 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersIrritable bowel syndrome (IBS)161 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersCeliac diseas23 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersInflammatory bowel disease33 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersDiverticulitis72 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersGastroparesis26 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersLeaky gut20 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersSmall intestinal bacterial overgrowth (SIBO)12 Participants
GI Symptom Survey PopulationSelf-reported Functional GI DisordersNone of the above1116 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026