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Article

Effects of Ramadan Intermittent Fasting on Gut Hormones and Body Composition in Males with Obesity

1
Laboratoire Mouvement, Sport, Santé (M2S)-EA 1274, Université Rennes, F-35000 Rennes, France
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Department of Exercise Physiology, University of Isfahan, Isfahan 8174673441, Iran
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ISSEP Ksar Said, University of La Manouba, Tunis 2000, Tunisia
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Department of Physical Education, Damghan Branch, Islamic Azad University, Damghan 3671637849, Iran
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Department of Health and Human Performance, Marymount University, Arlington, VA 22207, USA
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Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, NC 27599, USA
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Department of Anesthesiology, Pharmacology and Therapeutics, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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Faculty of Sport Sciences, Waseda University, Tokorozawa 359-1192, Japan
*
Authors to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(15), 5600; https://doi.org/10.3390/ijerph17155600
Received: 24 June 2020 / Revised: 28 July 2020 / Accepted: 29 July 2020 / Published: 3 August 2020
(This article belongs to the Special Issue Nutrition Styles and Obesity)
We studied the effects of Ramadan intermittent fasting (RIF) on gut hormones (leptin, glucagon-like peptide-1 (GLP-1), peptide YY (PYY), cholecystokinin (CCK), and ghrelin) in males with obesity. Thirty sedentary males were randomly allocated to either an experimental group (EG, n = 15) or a control group (CG, n = 15). The EG group completed their Ramadan fasting rituals (30 days), whereas the CG continued with their normal daily habits. Blood samples were collected at four time points: 24 h before the start of Ramadan (T0), on the 15th day of Ramadan (T1), the day after the end of Ramadan (T2) and 21 days after Ramadan (T3). There were significant pre-to-post improvements for leptin (p = 0.01, d = 1.52), GLP-1 (p = 0.022, d = 0.75), PYY (p = 0.031, d = 0.69) and CCK (p = 0.027, d = 0.81) in the EG, with no interaction effect for ghrelin (p = 0.74; d = 0.008). No significant changes (p > 0.05) occurred in plasma volume variations (ΔPV) after RIF in both EG (−0.03 ± 0.01%) and CG (0.06 ± 0.07%). RIF represents an effective strategy to modify appetite-regulating hormones, leading to improved body composition indices and reduced obesity. View Full-Text
Keywords: obese; overweight; gut hormones; fasting; body composition obese; overweight; gut hormones; fasting; body composition
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MDPI and ACS Style

Zouhal, H.; Bagheri, R.; Triki, R.; Saeidi, A.; Wong, A.; Hackney, A.C.; Laher, I.; Suzuki, K.; Ben Abderrahman, A. Effects of Ramadan Intermittent Fasting on Gut Hormones and Body Composition in Males with Obesity. Int. J. Environ. Res. Public Health 2020, 17, 5600. https://doi.org/10.3390/ijerph17155600

AMA Style

Zouhal H, Bagheri R, Triki R, Saeidi A, Wong A, Hackney AC, Laher I, Suzuki K, Ben Abderrahman A. Effects of Ramadan Intermittent Fasting on Gut Hormones and Body Composition in Males with Obesity. International Journal of Environmental Research and Public Health. 2020; 17(15):5600. https://doi.org/10.3390/ijerph17155600

Chicago/Turabian Style

Zouhal, Hassane, Reza Bagheri, Raoua Triki, Ayoub Saeidi, Alexei Wong, Anthony C. Hackney, Ismail Laher, Katsuhiko Suzuki, and Abderraouf Ben Abderrahman. 2020. "Effects of Ramadan Intermittent Fasting on Gut Hormones and Body Composition in Males with Obesity" International Journal of Environmental Research and Public Health 17, no. 15: 5600. https://doi.org/10.3390/ijerph17155600

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