Medium Chain Fatty Acids and Ketones (MCFA)

February 25, 2024 updated by: Bente Kiens, University of Copenhagen

Metabolic Effects of Dietary Medium-Chain Fatty Acids.

16 participants were randomized to complete two seven-day intervention periods with twice-daily consumption of Medium-chain fatty acids (MCT) or long-chain fatty acids (LCT) oil. Before and after each intervention, participants completed a five-hour experimental day evaluating the response to a first intake of the MCT or LCT oils (pre MCT or LCT), which was repeated after the intervention period of daily intake (post MCT or LCT) (Fig. The intervention periods were separated by a 2-4-week washout period.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Prior to the experimental days, the participants abstained from alcohol and vigorous physical activity and consumed a controlled, eucaloric diet comprising 30 energy % (E%) fat, 52 E% carbohydrate, and 18E% protein to ensure similar conditions before each experimental day.

On the experimental days, participants arrived by passive transport in the overnight fasted state (12 h) at 8 a.m at the institute. At arrival, participants were weighed, and body composition was determined using dual-energy x-ray absorptiometry (DXA). Then a catheter was inserted into an antecubital vein. Following 30 min of supine rest, whole-body oxygen uptake and substrate oxidation were determined, whereafter a basal venous blood sample was obtained. Subsequently, participants ingested a test drink containing 35g of MCT or LCT oil diluted in 100g of a low-fat, low-carbohydrate cocoa milk within five min. 100 ml water was provided together with the test drink. Participants were blinded to the type of oil intake on the experimental days. The participants were then followed for five hours. Venous blood samples and indirect calorimetry measurements were performed frequently during the five hours. Participants rested in a bed throughout the test day.

Following the first test day, a seven-day intervention period (chronic intake) with twice-daily consumption of MCT or LCT oil was conducted. During the seven days of daily oil intake, the participants ingested 2x10g oil in 15g cocoa milk on day 1-2, 2x20g oil in 30g cocoa milk on day 3-5, and 2x30g oil in 40g cocoa milk on day 6-7. This corresponded to 812kJ on day 1-2, 1625kJ on day 3-5, and 2413kJ on day 6-7. The participants were instructed to maintain their habitual dietary patterns and physical activity level during the intervention. The participants were instructed to consume the oil together with breakfast and dinner and were supervised to ensure compliance.

After the chronic intake period, a second experimental day (post), mirroring the one of the pre day, was conducted.

After a wash-out period the intervention was repeated in a cross-over design.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Locations

  • Denmark
      • Copenhagen, Denmark, 2100
        • University of Copenhagen

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • BMI between 20 and 35
  • Moderate physical activity level, defined as 1 to 3 weekly sessions of exercise.
  • Non-smokers
  • No use of medicine
  • No known prediabetes or diabetes

Exclusion Criteria:

High habitual intake of MCFA (e.g., coconut milk, coconut oil, or dairy products), A ketogenic diet, known diabetes or pre-diabetes, use of medications, daily use of nicotine products

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: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Fatty acid intake in lean males
Lean males will be studied before and after 7 days daily intake of either Medium-chain fatty acids or Long-chain fatty acids. . After a wash-out period the intervention is repeated in opposite sequence.
Other: Fatty acid intake in lean and obese males
Acute and chronic intake of MCT and LCT
Experimental: Fatty acid intake in obese males
In obese male participants will be studied before and after 7 days daily intake of either medium-chain fatty acids (MCT) or long-chain fatty acids (LCT). After a wash-out period the intervention is repeated in opposite sequence.
Other: Fatty acid intake in lean and obese males
Acute and chronic intake of MCT and LCT

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Ketone bodies in plasma
Time Frame: Day 0 to day 7
an increase in plasma ketone bodies induced by intake of medium-chain fatty acids in lean and obese participants
Day 0 to day 7

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Copenhagen

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bente Kiens, D.sci, PhD, University of Copenhagen

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 30, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 30, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 25, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 25, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 1, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 1, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 25, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2024

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MCT

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.

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