Effects of Lean Beef Consumption on Cardiometabolic Health and Gut Microbiome

September 22, 2026 updated by: Jaapna Dhillon, University of Missouri-Columbia

This study is investigating the benefits of lean beef consumption on cardiometabolic health and gut microbiome.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

The study is a 6-wk randomized, controlled, and parallel arm clinical trial. Participants will be randomized to consume either lean grain-fed beef, lean grass-fed beef, or plant-based meat for 6 weeks. Outcomes assessed will include metabolic, inflammatory, and gut microbiome markers.

Study Type

Interventional

Enrollment (Estimated)

90

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Missouri
      • Columbia, Missouri, United States, 65211
        • Recruiting
        • University of Missouri-Columbia
        • Principal Investigator:
          • Jaapna Dhillon, PhD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 18-45 years of age
  • BMI: 18-35 kg/m2
  • Willingness to consume study foods.
  • Willing to comply with study protocol.
  • Consistent diet and activity patterns for 4 weeks
  • Weight stable (≤5 kg change over the last 3 months)
  • Non-smoker >1 year or more

Exclusion Criteria:

  • Allergies to foods provided in the study
  • Diabetes
  • Gastrointestinal disease and/or bariatric surgery
  • Uncontrolled hypertension and blood pressure ≥ 180/110
  • Illicit drug use
  • Recent consumption of antibiotics or probiotics
  • Recent start of medications that affect metabolism or appetite.
  • Recent blood donation
  • Drug therapy for coronary artery disease, peripheral artery disease, congestive - heart failure, or dyslipidemia
  • Pregnant or lactating individuals
  • Taste or smell disorders
  • High consumers of red meat or plant-based meat (≥ 4 times/week)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Lean (≥90%) Grass-Fed Beef

The quantity of beef will be adjusted or normalized based on their individual energy requirements. The specified amount will be 4 oz. per day or 28 ounces per week for participants with an energy requirement of 2000 kcal. Participants will consume meals for six weeks.

The specified amount will be 4 oz. per day or 28 ounces per week for participants with an energy requirement of 2000 kcal.

Experimental: Lean (≥90%) Grain-Fed Beef

The quantity of beef will be adjusted or normalized based on their individual energy requirements. The specified amount will be 4 oz. per day or 28 ounces per week for participants with an energy requirement of 2000 kcal. Participants will consume meals for six weeks.

The specified amount will be 4 oz. per day or 28 ounces per week for participants with an energy requirement of 2000 kcal.

Active Comparator: Plant-Based Meat

Plant-based meat (beyond meat product) would be macronutrient matched to the same quantities of meat prescribed for a given energy level. Participants will consume meals for six weeks.

Plant-based meat would be macronutrient matched to the same quantities of meat prescribed for a given energy level.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
LDL-C concentrations
Time Frame: Baseline, week 6

Lipid profile

Baseline, week 6
Interleukin-6 concentrations
Time Frame: Baseline, week 6

Inflammatory marker

Baseline, week 6
Gut microbial alpha-diversity
Time Frame: Baseline, week 6

Assessed via16S rRNA sequencing

Baseline, week 6

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
HDL-C concentrations
Time Frame: Baseline, week 6

Lipid profile

Baseline, week 6
Total cholesterol concentrations
Time Frame: Baseline, week 6

Lipid profile

Baseline, week 6
Triglyceride concentrations
Time Frame: Baseline, week 6

Lipid profile

Baseline, week 6
Gut microbiome abundance
Time Frame: Baseline, week 6

16S rRNA sequencing

Baseline, week 6
LPS-binding protein concentration
Time Frame: Baseline, week 6

Intestinal permeability marker

Baseline, week 6
Glucose concentrations
Time Frame: Baseline, week 6

Blood Glucose

Baseline, week 6
Insulin concentrations
Time Frame: Baseline, week 6

Insulin

Baseline, week 6
Body mass
Time Frame: Baseline, week 3, and week 6

Measured in kg

Baseline, week 3, and week 6
Fat mass
Time Frame: Baseline, week 3, and week 6

Fat mass

Baseline, week 3, and week 6
Fat-free mass
Time Frame: Baseline, week 3, and week 6

Fat-free mass

Baseline, week 3, and week 6
Waist circumference
Time Frame: Baseline, week 3, and week 6

Waist circumference

Baseline, week 3, and week 6
Hip circumference
Time Frame: Baseline, week 3, and week 6

Hip Circumference

Baseline, week 3, and week 6
Thigh circumference
Time Frame: Baseline, week 3, and week 6

Thigh Circumference

Baseline, week 3, and week 6
24 hour appetite ratings
Time Frame: Baseline, week 6

24-hour appetite ratings assessed on VAS

Baseline, week 6
Physical activity scores
Time Frame: Baseline, week 6

Activity assessment using Actigraphs

Baseline, week 6
Total hours of sleep
Time Frame: Baseline, week 6

Sleep diary

Baseline, week 6
Palatability rating of foods
Time Frame: Baseline, week 3, week 6

Hedonic general labelled magnitude scale (gLMS)

Baseline, week 3, week 6
Acceptance rating of foods
Time Frame: Baseline, week 3, week 6

9-point food action rating scale

Baseline, week 3, week 6
Taste and flavor intensity ratings of foods
Time Frame: Baseline

Sensory intensity scales

Baseline
Gene expression levels
Time Frame: Baseline, week 6

Transcriptomics analyses

Baseline, week 6
Inflammatory marker concentrations
Time Frame: Baseline, week 6

Inflammatory markers

Baseline, week 6
Healthy eating index score
Time Frame: Baseline, week 6

NCI diet history questionnaire

Baseline, week 6

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Metabolite intensities
Time Frame: Baseline, week 6

Untargeted and targeted metabolomics

Baseline, week 6
Nutrient intakes
Time Frame: Baseline, week 3, week 6

24 hours dietary recall

Baseline, week 3, week 6

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Jaapna Dhillon, PhD, University of Missouri-Columbia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 11, 2024

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2027

Study Registration Dates

First Submitted

April 29, 2024

First Submitted That Met QC Criteria

May 22, 2024

First Posted (Actual)

May 29, 2024

Study Record Updates

Last Update Posted (Actual)

September 25, 2026

Last Update Submitted That Met QC Criteria

September 22, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2097458
  • 2097458 (Other Identifier: University of Missouri)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Individual participant data that underlie the results reported here after deidentification (ie; text, tables, figures, and appendices)

IPD Sharing Time Frame

Immediately following publication. No end date.

IPD Sharing Access Criteria

Data will be deposited in online repositories

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.