Alternate Day Fasting for Weight Loss, Weight Maintenance and Cardio-protection
2 other identifiers
interventional
100
1 country
1
Brief Summary
The proposed research will demonstrate that alternate day modified fasting (ADMF) is a suitable alternative to daily calorie restriction (CR) for weight loss, weight maintenance, and heart disease prevention. Since many overweight and obese individuals find it difficult to adhere to daily CR, this diet option may improve adherence with these dietary restriction protocols. This, in turn, will allow a greater percent of the overweight and obese population to lose weight, maintain weight loss, and prevent future occurrences of coronary heart disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Sep 2010
Longer than P75 for not_applicable
1 active site
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
August 14, 2009
CompletedFirst Posted
Study publicly available on registry
August 17, 2009
CompletedStudy Start
First participant enrolled
September 1, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2015
CompletedResults Posted
Study results publicly available
July 9, 2020
CompletedJuly 21, 2020
July 1, 2020
4.3 years
August 14, 2009
May 22, 2017
July 8, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Body Weight
Change in body weight from baseline to month 12
Baseline to month 12
Secondary Outcomes (7)
Change in HDL Cholesterol
12 month interval
Change in Systolic Blood Pressure
12 month interval
Change in Fasting Glucose
12 month interval
Change in Fasting Insulin
12 month interval
Change in Insulin Resistance Measured by HOMA-IR
12 month interval
- +2 more secondary outcomes
Study Arms (3)
Alternate day fasting (ADF)
EXPERIMENTALFast day diet: 25% energy intake, Feast day diet: Ad libitum energy intake (alternating days)
Calorie restriction (CR)
EXPERIMENTAL75% energy intake every day
Control
ACTIVE COMPARATORUsual diet
Interventions
Eligibility Criteria
You may qualify if:
- Age between 18 to 65 years old
- BMI between 25.0 and 39.9 kg/m2
- Previously sedentary (\<60 minutes/week of light activity corresponding to 2.5 to 4.0 metabolic equivalents (METs) for the 3 months prior to the study)
You may not qualify if:
- Have a history cardiovascular disease (prior angina, myocardial infarction or stroke)
- Are diabetic (fasting blood glucose \> 126 mg/dl)
- Have a history of psychiatric disorders and/or eating disorders
- Are taking anti-depressant or anti-anxiety medications
- Are taking drugs that affect study outcomes (weight loss, lipid-lowering, or blood pressure drugs)
- Are not weight stable for 3 months prior to the beginning of study (weight gain or loss \> 4 kg)
- Are not able to keep a food diary or activity log for 7 consecutive days during screening
- Are perimenopausal or have an irregular menstrual cycle (menses that does not appear every 27-32 days)
- Are claustrophobic or have implanted electrical devices (cardiac pacemaker or a neurostimulator)
- Are pregnant, or trying to become pregnant
- Are smokers
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Illinois, Chicago
Chicago, Illinois, 60622, United States
Related Publications (6)
Allaf M, Elghazaly H, Mohamed OG, Fareen MFK, Zaman S, Salmasi AM, Tsilidis K, Dehghan A. Intermittent fasting for the prevention of cardiovascular disease. Cochrane Database Syst Rev. 2021 Jan 29;1(1):CD013496. doi: 10.1002/14651858.CD013496.pub2.
PMID: 33512717DERIVEDLin S, Lima Oliveira M, Gabel K, Kalam F, Cienfuegos S, Ezpeleta M, Bhutani S, Varady KA. Does the weight loss efficacy of alternate day fasting differ according to sex and menopausal status? Nutr Metab Cardiovasc Dis. 2021 Feb 8;31(2):641-649. doi: 10.1016/j.numecd.2020.10.018. Epub 2020 Oct 31.
PMID: 33358713DERIVEDGabel K, Kroeger CM, Trepanowski JF, Hoddy KK, Cienfuegos S, Kalam F, Varady KA. Differential Effects of Alternate-Day Fasting Versus Daily Calorie Restriction on Insulin Resistance. Obesity (Silver Spring). 2019 Sep;27(9):1443-1450. doi: 10.1002/oby.22564. Epub 2019 Jul 22.
PMID: 31328895DERIVEDMiranda ER, Fuller KNZ, Perkins RK, Kroeger CM, Trepanowski JF, Varady KA, Haus JM. Endogenous secretory RAGE increases with improvements in body composition and is associated with markers of adipocyte health. Nutr Metab Cardiovasc Dis. 2018 Nov;28(11):1155-1165. doi: 10.1016/j.numecd.2018.07.009. Epub 2018 Aug 2.
PMID: 30297199DERIVEDTrepanowski JF, Kroeger CM, Barnosky A, Klempel M, Bhutani S, Hoddy KK, Rood J, Ravussin E, Varady KA. Effects of alternate-day fasting or daily calorie restriction on body composition, fat distribution, and circulating adipokines: Secondary analysis of a randomized controlled trial. Clin Nutr. 2018 Dec;37(6 Pt A):1871-1878. doi: 10.1016/j.clnu.2017.11.018. Epub 2017 Dec 5.
PMID: 29258678DERIVEDTrepanowski JF, Kroeger CM, Barnosky A, Klempel MC, Bhutani S, Hoddy KK, Gabel K, Freels S, Rigdon J, Rood J, Ravussin E, Varady KA. Effect of Alternate-Day Fasting on Weight Loss, Weight Maintenance, and Cardioprotection Among Metabolically Healthy Obese Adults: A Randomized Clinical Trial. JAMA Intern Med. 2017 Jul 1;177(7):930-938. doi: 10.1001/jamainternmed.2017.0936.
PMID: 28459931DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
1. The duration of the maintenance phase was short (6 months). 2. The dropout rate was higher than anticipated. 3. We enrolled predominantly metabolically healthy obese individuals.
Results Point of Contact
- Title
- Krista Varady, PhD, Associate Professor
- Organization
- University of Illinois Chicago
Study Officials
- PRINCIPAL INVESTIGATOR
Krista Varady, PhD
University of Illinois Chicago
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
August 14, 2009
First Posted
August 17, 2009
Study Start
September 1, 2010
Primary Completion
January 1, 2015
Study Completion
January 1, 2015
Last Updated
July 21, 2020
Results First Posted
July 9, 2020
Record last verified: 2020-07