NCT05690061

Brief Summary

The purpose of this study is to determine the effects of meat on inflammatory and metabolite profiles in middle-aged individuals after an acute meal. Up to 36 adults, who are overweight or obese and between 30-60 years old will undergo a consent/screening visit, followed by three study visits. On separate visits to the clinical research facilities at the Center for Human Nutrition Studies, participants will consume either 9 oz (250 grams) of cooked grain-fed beef, grass-fed beef, or a plant-based meat alternative (Impossible Burger). Blood will be drawn prior to food consumption and three more times after eating the meal at 1h, 3h, and 5h after participants finishing their meal. The investigators will use those blood samples to determine the impacts of these foods on inflammatory markers and metabolite profiles (compounds that circulate in our blood such as amino acids, fatty acids, and phenolics).

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 19, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 19, 2023

Completed
13 days until next milestone

Study Start

First participant enrolled

February 1, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 23, 2023

Completed
12 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 16, 2024

Completed
Last Updated

April 30, 2024

Status Verified

April 1, 2024

Enrollment Period

11 months

First QC Date

December 19, 2022

Last Update Submit

April 29, 2024

Conditions

Keywords

MetabolomicsHuman NutritionMeatPlant-based Meat Alternative

Outcome Measures

Primary Outcomes (5)

  • Inflammatory cytokine biomarker (IL-6) concentrations in plasma samples

    Inflammatory biomarker concentrations of IL-6 (pg/ml) will be measured using ELISA kits at the Center for Human Nutrition Studies at Utah State University. Blood samples will be obtained via phlebotomy before the consumption of the meal, and at time points 60 minutes, 180 minutes, and 300 minutes after consumption of the meal, centrifuged immediately and stored at -80ºC until analyses are performed.

    Change from fasting concentrations after eating.

  • Inflammatory cytokine biomarker (C-reactive protein) concentrations in plasma samples

    Inflammatory biomarker concentrations of C-reactive protein (CRP; ng/ml) will be measured using ELISA kits at the Center for Human Nutrition Studies at Utah State University. Blood samples will be obtained before the consumption of the meal, and at time points 60 minutes, 180 minutes, and 300 minutes after consumption of the meal, centrifuged immediately, and stored at -80ºC until analyses are performed.

    Change from fasting concentrations after eating.

  • Inflammatory cytokine biomarker (TNF-alpha) concentrations in plasma samples

    Inflammatory biomarker concentrations of TNF-alpha (pg/ml) will be measured using ELISA kits at the Center for Human Nutrition Studies at Utah State University. Blood samples will be obtained before the consumption of the meal, and at time points 60 minutes, 180 minutes, and 300 minutes after consumption of the meal, centrifuged immediately, and stored at -80ºC until analyses are performed.

    Change from fasting concentrations after eating.

  • Inflammatory cytokine biomarker (Vascular Adhesion Molecule-1) concentrations in plasma samples

    Inflammatory biomarker concentrations of Vascular Adhesion Molecule-1 (ng/ml) will be measured using ELISA kits at the Center for Human Nutrition Studies at Utah State University. Blood samples will be obtained before the consumption of the meal, and at time points 60 minutes, 180 minutes, and 300 minutes after consumption of the meal, centrifuged immediately, and stored at -80ºC until analyses are performed.

    Change from fasting concentrations after eating.

  • Relative abundance of metabolites in plasma samples using triple quad LC/MS-MS

    Relative abundance (arbitrary units) of plasma metabolites after each meal will be measured using high-performance liquid chromatography tandem mass-spectrometry (LC/MS-MS). This analysis allows the simultaneous high-resolution measurement of a broad range of metabolites and will give insight into how food-derived metabolites from different meals impact metabolic pathways of human health. Blood samples will be obtained before each meal, and three times after the meal is consumed at time 60 minutes, 180 minutes, and 300 minutes, and centrifuged immediately and stored at -80ºC until analyses are performed. Multivariate statistical analysis and Partial least squares Discriminant Analysis will be used to identify features changed over time for each meal.

    Change from fasting concentrations after eating.

Secondary Outcomes (3)

  • Satiety Questionnaire

    Immediately before meal

  • Taste Questionnaire

    Immediately after eating

  • Mood Questionnaires

    Change in mood scores from baseline after eating.

Study Arms (6)

Sequence 1: Grain-Fed, Grass-Fed, Impossible

ACTIVE COMPARATOR

On the first visit, a grain-fed beef burger (250 grams) will be consumed. On the second visit, a grass-fed beef burger (250 grams) will be consumed. On the third visit, an Impossible BurgerTM (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Sequence 2: Grass-Fed, Grain-Fed, Impossible

ACTIVE COMPARATOR

On the first visit, a grass-fed beef burger (250 grams) will be consumed. On the second visit, a grain-fed beef burger (250 grams) will be consumed. On the third visit, an Impossible BurgerTM (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Sequence 3: Impossible, Grass-Fed, Grain-Fed

ACTIVE COMPARATOR

On the first visit, an Impossible BurgerTM (250 grams) will be consumed. On the second visit, a grass-fed beef burger (250 grams) will be consumed. On the third visit, a grain-fed beef burger (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Sequence 4: Impossible, Grain-Fed, Grass-Fed

ACTIVE COMPARATOR

On the first visit, an Impossible BurgerTM (250 grams) will be consumed. On the second visit, a grain-fed beef burger (250 grams) will be consumed. On the third visit, a grass-fed beef burger (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Sequence 5: Grain-Fed, Impossible, Grass-Fed

ACTIVE COMPARATOR

On the first visit, a grain-fed beef burger (250 grams) will be consumed. On the second visit, an Impossible BurgerTM (250 grams) will be consumed. On the third visit, a grass-fed beef burger (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Sequence 6: Grass-Fed, Impossible, Grain-Fed

ACTIVE COMPARATOR

On the first visit, a grass-fed beef burger (250 grams) will be consumed. On the second visit, an Impossible BurgerTM (250 grams) will be consumed. On the third visit, a grain-fed beef burger (250 grams) will be consumed.

Dietary Supplement: Grain-Fed Beef HamburgerDietary Supplement: Grass-Fed Beef HamburgerDietary Supplement: Impossible BurgerTM

Interventions

Grain-Fed Beef HamburgerDIETARY_SUPPLEMENT

Bowl of grain-fed beef hamburger cooked without seasonings. 250 grams of uncooked hamburger weighed out, then cooked in a non-stick pan for 8 minutes, no seasoning or oils were used and rendered fat was poured into serving bowl.

Sequence 1: Grain-Fed, Grass-Fed, ImpossibleSequence 2: Grass-Fed, Grain-Fed, ImpossibleSequence 3: Impossible, Grass-Fed, Grain-FedSequence 4: Impossible, Grain-Fed, Grass-FedSequence 5: Grain-Fed, Impossible, Grass-FedSequence 6: Grass-Fed, Impossible, Grain-Fed
Grass-Fed Beef HamburgerDIETARY_SUPPLEMENT

Bowl of grass-fed, grass-finished beef hamburger cooked without seasonings. 250 grams of uncooked hamburger weighed out, then cooked in a non-stick pan for 8 minutes, no seasoning or oils were used and rendered fat was poured into serving bowl.

Sequence 1: Grain-Fed, Grass-Fed, ImpossibleSequence 2: Grass-Fed, Grain-Fed, ImpossibleSequence 3: Impossible, Grass-Fed, Grain-FedSequence 4: Impossible, Grain-Fed, Grass-FedSequence 5: Grain-Fed, Impossible, Grass-FedSequence 6: Grass-Fed, Impossible, Grain-Fed
Impossible BurgerTMDIETARY_SUPPLEMENT

Bowl of plant-based Impossible burger cooked without seasonings. 250 grams of uncooked Impossible burger weighed out, then cooked in a non-stick pan for 8 minutes, no seasoning or oils were used and rendered fat was poured into serving bowl.

Sequence 1: Grain-Fed, Grass-Fed, ImpossibleSequence 2: Grass-Fed, Grain-Fed, ImpossibleSequence 3: Impossible, Grass-Fed, Grain-FedSequence 4: Impossible, Grain-Fed, Grass-FedSequence 5: Grain-Fed, Impossible, Grass-FedSequence 6: Grass-Fed, Impossible, Grain-Fed

Eligibility Criteria

Age30 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age ≥30 and ≤60 years;
  • BMI ≥25 and ≤35 kg/m2;
  • Weight stable in last 3 months (Loss or gain \<4%);
  • Hemoglobin A1C (HbA1C) ≤6.4%;
  • Fasting plasma glucose concentration \<126 mg/dl;
  • Subjects must be able to speak and understand English to participate in this study

You may not qualify if:

  • Use of medications that are known to affect the study outcome measures (e.g., NSAIDs, corticosteroids) or increase the risk of study procedures (e.g., anticoagulants) that cannot be temporarily discontinued for this study;
  • Consuming \>14 drinks per week;
  • Use of cigarettes (or other tobacco products) in last 3 months;
  • COVID vaccine within the last two weeks;
  • Engaged in high-level competitive exercise (e.g., triathlon, marathon, powerlifting);
  • Any inflammatory diseases(e.g. autoimmune diseases, coeliac disease, glomerulonephritis, hepatitis, inflammatory bowel disease, arthritis);
  • Diagnoses of active malignancy, congestive heart failure, diabetes mellitus and/or chronic obstructive pulmonary disease;
  • Use of antibiotics in last 60 days;
  • Pregnant (or planning to in the next month) or lactating women;
  • Soy allergy;
  • Subjects who the study PI considers unable to safely complete the study protocol;
  • Persons who are not able to grant voluntary informed consent;
  • Persons who are unable or unwilling to follow the study protocol or who, for any reason, the research team considers not an appropriate candidate for this study, including non-compliance with screening appointments or study visits;
  • Vegetarian

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Human Nutrition Studies

Logan, Utah, 84322, United States

Location

Related Publications (1)

  • Cloward J, Mason O, DeJesus I, Broadbent J, Payne T, Wengreen HJ, van Vliet S. Comparing Postprandial Inflammatory Responses to a Plant-Based Meat Alternative, Grass-Finished Beef, and Grain-Finished Beef in Healthy Middle-Aged Adults: A Three-Group Randomized Crossover Trial. Am J Clin Nutr. 2026 Jan 8:101192. doi: 10.1016/j.ajcnut.2026.101192. Online ahead of print.

Related Links

Study Officials

  • Stephan van Vliet, PhD

    Utah State University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Participants will not know which type of burger they consume.
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: Randomized cross-over design with 250 g of cooked meat (grain-fed hamburger, grass-fed hamburger, Impossible Burger) ingested and blood draws, urine, and questionnaires collected on separate visits.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 19, 2022

First Posted

January 19, 2023

Study Start

February 1, 2023

Primary Completion

December 23, 2023

Study Completion

December 16, 2024

Last Updated

April 30, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will share

The study protocol is attached to the ClinicalTrials.gov. Any collected data through RedCap and wet-lab assays will be made available upon publication. The metabolomics data will be deposited on Metabolomics Workbench (or a comparable repository) upon submission for publication.

Shared Documents
STUDY PROTOCOL, ICF, ANALYTIC CODE
Time Frame
Study protocol is available immediately. The analytical data will be available upon publication.
Access Criteria
Freely available.

Locations