Effect of Intermittent Fasting (18/6) on Energy Expenditure, Nutritional Status, and Body Composition in Healthy Adults

• Published in: Evidence-based complementary and alternative medicine 2021, Vol.2021, p.7809611-10
• Main Authors: Ağagündüz, Duygu, Acar-Tek, Nilüfer, Bozkurt, Osman
• Format: Article
• Language: English
• Subjects: Blood pressure; Body composition; Body fat; Body mass index; Body weight; Circadian rhythms; Diet; Energy; Energy expenditure; Exercise; Fasting; Fat-free body mass; Females; Food; Hydration; Influenza; Males; Meals; Metabolism; Nutrition research; Nutritional status; Physical activity; Physical fitness; Questionnaires; Religion; Sleep; Statistical analysis
• ISSN: 1741-427X; 1741-4288
• DOI: 10.1155/2021/7809611

Objective. This study was aimed at evaluating the effect of intermittent fasting of Ramadan on resting energy expenditure (REE), body composition, and nutritional status. Methods. The study was conducted on a total of 27 adults (16 females, 11 males) who were fasting (18 h) in the Ramadan month (May 6–June 3) of 2019. REE was measured using the indirect calorimeter. Dietary energy and nutrient intakes were evaluated by 3-day food records in baseline and post-Ramadan. Body composition and some metabolic parameters were analyzed simultaneously with REE measurements. All measurements were performed two times at baseline, and post-Ramadan. Results. Body weight (−2.9% vs. −1.4%), body mass index (BMI) (−3.1% vs. −2.1%), fat-free mass (−2.7% vs. −1.4%), and hydration status were decreased in both males and females after the Ramadan fasting (p