Protocol summary

Study aim
The Effect of Beetroot Extract supplementation on metabolic, hepatic, and inflammation parameters in patients with metabolic-dysfunction associated Steatotic liver disease.
Design
A phase 3 randomized, double-blind, controlled, parallel-group clinical trial on 50 patients.
Settings and conduct
This study is conducted at Behbood clinic. Patients with fatty liver disease who met the eligibility criteria were enrolled after providing written informed consent. At baseline, demographic data, weight, height, fasting blood samples, and 24-hour dietary recall were collected. Participants were categorized by BMI and randomly assigned, using block randomization, to receive either beetroot extract supplement (1 g daily for 12 weeks) or placebo. Both groups followed a hypocaloric diet. For blinding, the supplement and placebo capsules were coded as A and B, ensuring that neither patients nor investigators were aware of group assignments.
Participants/Inclusion and exclusion criteria
Entry criteria: 1.Age 18–65 years 2.Steatosis degree above 263 on FibroScan 3.BMI > 25 Exclusion criteria: 1.Unwillingness to continue the trial or non-adherence to the intervention 2.Pregnancy or lactation 3.Alcohol consumption 4.Presence of other liver diseases 5.Presence of cirrhosis or hepatic cancer 6.Use of corticosteroid medications 7.Use of hepatotoxic drugs 8.Use of liver-affecting supplements within the past 6 months 9.Changes in medication use 10.Use of weight-loss medications or supplements 11.Following any type of weight-loss diet within the past 3 months
Intervention groups
Beetroot extract (1000 mGr/daily)
Main outcome variables
Weight, waist circumference, hip circumference, waist-to-hip ratio (WHR), fasting blood glucose (FBG), liver enzymes, C-reactive protein (CRP), lipid profile, hepatic steatosis and fibrosis, insulin.

General information

Reason for update
Acronym
IRCT registration information
IRCT registration number: IRCT20100524004010N42
Registration date: 2025-10-20, 1404/07/28
Registration timing: prospective

Last update: 2025-10-20, 1404/07/28
Update count: 0
Registration date
2025-10-20, 1404/07/28
Registrant information
Name
Azita Hekmatdoost
Name of organization / entity
Shahid Beheshti University of Medical Sciences, National Institute of Nutrition Research
Country
Iran (Islamic Republic of)
Phone
+98 21 2293 0824
Email address
hekmat@sina.tums.ac.ir
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2025-10-23, 1404/08/01
Expected recruitment end date
2026-05-22, 1405/03/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
The Effect of Beetroot Extract supplementation on metabolic, hepatic, and inflammation parameters in patients with metabolic-dysfunction associated Steatotic liver disease.
Public title
The Effect of Beetroot Extract supplementation on metabolic, hepatic, andinflammation parameters in patients with metabolic-dysfunction associatedSteatotic liver disease.
Purpose
Supportive
Inclusion/Exclusion criteria
Inclusion criteria:
Age between 18 and 65 years old Diagnosis of metabolic dysfunction-associated steatotic liver disease (MASLD) confirmed by a gastroenterology subspecialist Liver steatosis score >263 on FibroScan Body mass index (BMI) >25
Exclusion criteria:
Lack of willingness to continue participation or non-adherence to the intervention Pregnancy or lactation Alcohol consumption Presence of other liver diseases Presence of cirrhosis or hepatocellular carcinoma Use of corticosteroid medications such as prednisolone, hydrocortisone, or betamethasone Use of hepatotoxic drugs such as tamoxifen, phenytoin, amoxifen, or lithium Use of liver-affecting supplements (e.g., fiber, omega-3, antioxidants) during the past 6 months Changes in medications (lipid-lowering agents, antidiabetic drugs) during study participation Use of weight-loss drugs or supplements Following any type of weight-loss diet within the past 3 months Weight reduction greater than 10% in the last 6 months (prior to enrollment)
Age
From 18 years old to 65 years old
Gender
Both
Phase
3
Groups that have been masked
  • Participant
  • Care provider
  • Investigator
  • Outcome assessor
  • Data analyser
  • Data and Safety Monitoring Board
Sample size
Target sample size: 50
Randomization (investigator's opinion)
Randomized
Randomization description
Patients were categorized into three groups based on their Body Mass Index (BMI): Group 1 with BMI between 25 and 30 (<30), Group 2 with BMI between 30 and 35 (<35), and Group 3 with BMI between 35 and 40. Using a randomized block design, participants in each BMI category were randomly assigned to either the beetroot extract supplementation group or the placebo group. To ensure balanced allocation, a stratified blocked randomization method was applied, with separate randomization conducted within each BMI stratum. The block size was set at four, including two allocations to Group A (beetroot extract) and two allocations to Group B (placebo). Six possible permutations of allocation sequences were used: AABB, ABAB, BBAA, BABA, ABBA, and BAAB.
Blinding (investigator's opinion)
Double blinded
Blinding description
For blinding purposes, an independent individual outside the research team is responsible for preparing the supplement and placebo, which are randomly assigned and labeled as groups A and B. Neither participants, investigators, nor outcome assessors are aware of the allocation (supplement or placebo) until the completion of the study and data analysis. The group codes will be disclosed only after data analyses have been completed, at the stage of manuscript preparation.
Placebo
Used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
National nutrition and food technology research institute
Street address
No. 7, West Arghavan Ave., Farahzadi Blvd., Qods Town,
City
Tehran
Province
Tehran
Postal code
1981619573
Approval date
2025-08-05, 1404/05/14
Ethics committee reference number
IR.SBMU.NNFTRI.REC.1404.029

Health conditions studied

1

Description of health condition studied
Fatty liver
ICD-10 code
K76.0
ICD-10 code description
Fatty (change of) liver, not elsewhere classified

Primary outcomes

1

Description
Hepatic steatosis
Timepoint
Before intervention and after 12 weeks
Method of measurement
Fibroscan

Secondary outcomes

1

Description
Blood glucose profile
Timepoint
At the beginning and end of the study (week 12)
Method of measurement
Blood test

2

Description
Blood lipid profile
Timepoint
At the beginning and end of the study (week 12)
Method of measurement
Blood test

3

Description
Liver enzymes
Timepoint
At the beginning and end of the study (week 12)
Method of measurement
Blood test

4

Description
C-reactive Protein
Timepoint
At the beginning and end of the study (week 12)
Method of measurement
Blood test

Intervention groups

1

Description
ntervention group: Participants in this group received beetroot extract supplementation (1 g per day equivalent to two 500mgr tablets) in combination with a calorie-restricted weight loss diet.
Category
Treatment - Other

2

Description
Control group: Participants in this group received a placebo (1 g per day, equivalent to two placebo capsules identical in appearance to the supplement) in combination with a calorie-restricted weight loss diet.
Category
Placebo

Recruitment centers

1

Recruitment center
Name of recruitment center
Behbood clinic
Full name of responsible person
Mohammad Hossein Ebrahimizadeh
Street address
Mofateh street, ave 14
City
Tehran
Province
Tehran
Postal code
1587844611
Phone
+98 21 8817 1901
Email
info@clinicbehhbood.com
Web page address

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Shahid Beheshti University of Medical Sciences
Full name of responsible person
Naser Kalantari
Street address
No. 7, West Arghavan Ave., Farahzadi Blvd., Qods Town,
City
Tehran
Province
Tehran
Postal code
1981619573
Phone
+98 21 2235 7486
Email
info@nnft.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Shahid Beheshti University of Medical Sciences
Proportion provided by this source
1
Public or private sector
Private
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic

Person responsible for general inquiries

Contact
Name of organization / entity
Shahid Beheshti University of Medical Sciences
Full name of responsible person
Azita Hekmatdoost
Position
Professor
Latest degree
Ph.D.
Other areas of specialty/work
Nutrition
Street address
No. 7, West Arghavan Ave., Farahzadi Blvd., Qods Town,
City
Tehran
Province
Tehran
Postal code
1981619573
Phone
+98 21 2235 7486
Email
a_hekmat2000@yahoo.com

Person responsible for scientific inquiries

Contact
Name of organization / entity
Shahid Beheshti University of Medical Sciences
Full name of responsible person
Azita Hekmatdoost
Position
Professor
Latest degree
Ph.D.
Other areas of specialty/work
Nutrition
Street address
No. 7, West Arghavan Ave., Farahzadi Blvd., Qods Town,
City
Tehran
Province
Tehran
Postal code
1981619573
Phone
+98 21 2235 7486
Email
a_hekmat2000@yahoo.com

Person responsible for updating data

Contact
Name of organization / entity
Shahid Beheshti University of Medical Sciences
Full name of responsible person
Azita Hekmatdoost
Position
Professor
Latest degree
Ph.D.
Other areas of specialty/work
Nutrition
Street address
No. 7, West Arghavan Ave., Farahzadi Blvd., Qods Town
City
Tehran
Province
Tehran
Postal code
1981619573
Phone
+98 21 2235 7486
Email
a_hekmat2000@yahoo.com

Sharing plan

Deidentified Individual Participant Data Set (IPD)
Undecided - It is not yet known if there will be a plan to make this available
Study Protocol
Undecided - It is not yet known if there will be a plan to make this available
Statistical Analysis Plan
Undecided - It is not yet known if there will be a plan to make this available
Informed Consent Form
Undecided - It is not yet known if there will be a plan to make this available
Clinical Study Report
Undecided - It is not yet known if there will be a plan to make this available
Analytic Code
Undecided - It is not yet known if there will be a plan to make this available
Data Dictionary
Undecided - It is not yet known if there will be a plan to make this available
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