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CompletedNCT05750641Updated Mar 2, 2023

The Efficacy of Removal of Animal Milk From the Diet in Functional Dyspepsia: A Cross-sectional Study

An observational study in Dyspepsia and Gastrointestinal System Disease, sponsored by Bezmialem Vakif University. Completed at 1 site in Turkey. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-03-02.

Sponsored by Bezmialem Vakif University · Observational

Study type
Observational
Model
Case-crossover
Time perspective
Prospective
Enrollment
15
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The goal of this observational study is to learn about compare the effect of removing animal milk from diets on the symptoms of FD patients in describe participant population.

The main question it aims to answer are:

  • Can removing milk and dairy from diets be used to treat FD patients?

The participants will be divided into two groups and will do the following;

  • removing milk and dairy products under the advice of a dietician without medical treatment
  • receiving medical treatment without restricted diet.

Researchers will compare two groups to the effect of removing milk from diet on the symptoms of FD patients.

Read the detailed description

In this cross-sectional cohort study, 120 patients with FD diagnosed by the Rome IV criteria were included. Patients were divided equally into two groups; those who removed milk and dairy products under the advice of a dietician without medical treatment and those who did not. For determining the severity of symptoms, "The gastrointestinal Symptom Rating Scale (GSRS)" was used at the onset of the study and the end of the one-month follow-up period.

Between the two groups, there was no statistically significant difference regarding age, body mass index (BMI), frequency and duration of symptoms, weight changes in the last six months, FD subtypes, and upper GI endoscopy results (p>0.05). Female patients outnumbered men in the animal milk removal group (p=0.01). Although the patients in the animal milk removal group had higher GSRS scores at the beginning (p=0.01), both groups had similar GSRS scores at the end of the study (p=0.99). After one month follow-up period, GSRS scores have improved in both groups compared to the baseline (p=0.01). However, the decrease in the GSRS total symptom score was significantly higher in the animal milk removal group compared to the free diet group (p=0.01). In the evaluation of GSRS symptom subsets, a statistically higher reduction was observed in 7 of the 15 subsets in the animal milk removal group compared to the free-diet group (p\<0.05).

Of the 120 FD patients who followed up for one month, 60 who removed milk products had a more significant reduction in GSRS symptom score and 7 of the 15 symptom subset scores than 60 patients receiving an unrestricted diet.

02

Conditions studied

  • Dyspepsia
  • Gastrointestinal System Disease

Keywords

  • functional dyspepsia
  • milk
  • dairy products
03

In context

Digestive System Diseases

613 studies on the registry are indexed under Digestive System Diseases; 117 are open to participants now.

This study's enrollment of 15 is below the median of 272 across 193 observational studies indexed under Digestive System Diseases.

Browse Digestive System Diseases studies →

Lead sponsor

Bezmialem Vakif University is the lead sponsor of 345 studies on the registry; 58 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients between the ages of 18-65 admitted to the gastroenterology outpatient clinic between September 2020 and March 2021, fulfilling the Rome IV Consensus criteria for the diagnosis of FD, were included in the study in a cross-sectional and prospective manner according to the order of admission

Inclusion criteria

  • between the ages of 18-65
  • having at least one of the complaints of postprandial fullness, early satiety, epigastric burning and pain
  • the onset of the complaint is at least 6 months ago and at least one complaint has been going on at least 3 days a week for the last 3 months
  • no underlying organic pathology is detected in the examinations.

Exclusion criteria

Exclusion Criteria:

  • being outside the age range of 18-65
  • having alarm symptoms such as vomiting, gastrointestinal bleeding, and weight loss of 5% or more in the last 3 months
  • presence of comorbidities such as dementia, CVD, psychiatric diseases
  • covid-19 positivity during the research
05

Study design

Observational model
Case-crossover
Time perspective
Prospective
Enrollment
15 participants (actual)
Patient registry
No

Groups and cohorts

  • diet group

    those who removed milk and dairy products under the advice of a dietician without medical treatment.

    Other: removing milk and dairy products from diets without medical treatment

  • free-diet group

    According to current standard algorithms and guidelines, appropriate treatment for FD types was arranged for the patient group who preferred to receive a free diet.

    Other: According to current standard algorithms and guidelines, appropriate treatment for FD types.

Interventions

  • Otherremoving milk and dairy products from diets without medical treatment

    A specialist dietician prepared a diet list based on providing adequate balanced nutrition and is handed over to the diet group without any medical treatment

  • OtherAccording to current standard algorithms and guidelines, appropriate treatment for FD types.

    According to current standard algorithms and guidelines, appropriate treatment for FD types was arranged for the patient group who preferred to receive a free diet

06

What researchers measure

Primary outcomes

  1. The comparing the scores of symptom subsets of the two patient groups

    Gastrointestinal Symptom Rating Scale

    Time frame: one month

07

Study locations

1 site
  • Bezmialem Vakif Univercity
    Istanbul, 34093, Turkey
08

References and documents

Individual participant data

Plan to share: Undecided — The transfer of individual participant data in the study to electronic media was not provided.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 2, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05750641
Lead sponsor
Bezmialem Vakif University
Responsible party
Sponsor
First posted
Mar 2, 2023
Start date
Sep 1, 2020
Primary completion
Mar 31, 2021
Completion
Apr 30, 2021
Last update
Mar 2, 2023

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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