- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04527952
The Fasting and Shifted Timing (FAST) of Eating Study (FAST)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Fasting and time-restricted feeding (TRF) have become increasingly popular in nutrition research due to the potential health benefits they may provide. Several animal studies, and more recently some human studies, have indicated regular meal-timing (i.e. eating mostly in the day) or fasting have been beneficial for controlling weight, blood pressure, cholesterol, glucose, and insulin sensitivity.
These types of eating patterns may offer the same "anti-aging" health benefits as traditional caloric restriction (i.e. consistent and routine adherence to a very low-calorie diet).While caloric restriction is considered the gold standard for weight management, weight regain often limits the long-term effectiveness of this approach. People often experience increases in hunger, which make it difficult to sustain this type of behavior.Therefore, researchers are turning to these dietary approaches as alternatives to low-calorie diets in an effort to obtain the same benefits, but with less burden on participants.
However, it is not clear if the adherence to these types of diet protocols are any better than a low-calorie diet. Would people be more satisfied with meal-timing or fasting over a traditional very low-calorie diet? That is the main research question of this study.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
South Carolina
-
Columbia, South Carolina, United States, 29208
- University of South Carolina
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Be 18 years or older.
- Have a BMI between 25 - 49.9 kg/m2.
- Have a scale at home, or some way of weighing yourself regularly, so that you can report your body weight to the research staff.
- Be able to check emails regularly, because all of the surveys need to be completed online.
Exclusion Criteria:
- NOT be already practicing any of these fasting approaches.
- NOT currently diagnosed with diabetes.
- NOT taking any appetite suppressants or prescription weight loss medications.
- NOT planning on getting pregnant within the next 6 weeks.
- Do NOT currently have any eating disorders.
- Have NOT lost or gained a significant amount of weight (i.e. 10 pounds or more) within the last 6 months.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Time-restricted feeding (TRF)
Participants will eat the majority of their calories in the day.
More specifically participants will consume 70% of their total calories before 5 pm and the remaining 30% after 5 pm.
|
Participants will receive handouts via email about how to follow each diet
|
Active Comparator: Intermittent fasting (IF)
This involves eating all of one's meals within a specific time (e.g. 8 hours) frame and fasting for the remaining hours (16 hours) in a day.
|
Participants will receive handouts via email about how to follow each diet
|
Active Comparator: Alternate day fasting (ADF)
This involves complete fasting (i.e.
no food or caloric containing beverages, only water consumption) for roughly an entire 36-hour period, followed by an ad libitum feeding day.
|
Participants will receive handouts via email about how to follow each diet
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Weight loss-week 1
Time Frame: 1 week
|
We will assess weight loss via self-report after 1 week on diet #1
|
1 week
|
Weight loss- week 2
Time Frame: 1 week
|
We will assess weight loss via self-report after 1 week on diet #2
|
1 week
|
Weight loss- week 3
Time Frame: 1 week
|
We will assess weight loss via self-report after 1 week on diet #3
|
1 week
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Energy intake-week 1
Time Frame: 6 weeks
|
Energy (kcal) intake will be assessed after 1 week on diet #1
|
6 weeks
|
Energy intake- week 2
Time Frame: 6 weeks
|
Energy (kcal) intake will be assessed after 1 week on diet #2
|
6 weeks
|
Energy intake- week 3
Time Frame: 6 weeks
|
Energy (kcal) intake will be assessed after 1 week on diet #3
|
6 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Gabrielle Turner-McGrievy, University of South Carolina
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Pro00089911
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
Clinical Trials on Overweight and Obesity
-
Washington University School of MedicinePatient-Centered Outcomes Research Institute; Pennington Biomedical Research... and other collaboratorsActive, not recruitingOvernutrition | Nutrition Disorders | Overweight | Body Weight | Pediatric Obesity | Body Weight Changes | Childhood Obesity | Weight Gain | Adolescent Obesity | Obesity, Childhood | Overweight and Obesity | Overweight or Obesity | Overweight AdolescentsUnited States
-
University Hospital, LilleNational Research Agency, France; European Union; University of Lille Nord de... and other collaboratorsNot yet recruitingOverweight and Obesity | Overweight, Childhood | Overweight, Infant
-
Institut Investigacio Sanitaria Pere VirgiliCompletedObesity, Childhood | Overweight and Obesity | Overweight, ChildhoodSpain
-
Memorial Sloan Kettering Cancer CenterRecruitingObesity | Overweight | Overweight and Obesity | Obese | Overweight or ObesityUnited States
-
Holbaek SygehusUniversity of Copenhagen; University of Florida; University of Minnesota; Hebrew... and other collaboratorsRecruitingChildhood Overweight and ObesityDenmark
-
National Taiwan University HospitalCompleted
-
Universidade do Extremo Sul Catarinense - Unidade...RecruitingObesity | Overweight and Obesity | Obesity; Endocrine | Overweight, Obesity and Other HyperalimentationBrazil
-
Mexican National Institute of Public HealthUNICEFCompleted
-
Universidade do PortoFundação para a Ciência e a Tecnologia; Administração Regional de Saúde do... and other collaboratorsCompletedOverweight and ObesityPortugal
-
University of British ColumbiaTerminatedOverweight and ObesityCanada
Clinical Trials on Online handouts describing how to follow each diet for 1 week each
-
Memorial Sloan Kettering Cancer CenterTufts Medical Center; Lahey ClinicCompleted