Faculty of Medicine and Health, Nutrition, Exercise and Eating Disorders, The Boden Institute of Obesity, The University of Sydney, Charles Perkins Centre, NSW 2006, Australia.
Nutrients. 2019 Feb 24;11(2):478. doi: 10.3390/nu11020478.
Ramadan involves one month of fasting from sunrise to sunset. In this meta-analysis, we aimed to determine the effect of Ramadan fasting on weight and body composition.
In May 2018, we searched six databases for publications that measured weight and body composition before and after Ramadan, and that did not attempt to influence physical activity or diet.
Data were collected from 70 publications (90 comparison groups, 2947 participants). There was a significant positive correlation between starting body mass index and weight lost during the fasting period. Consistently, there was a significant reduction in fat percentage between pre-Ramadan and post-Ramadan in people with overweight or obesity (-1.46 (95% confidence interval: -2.57 to -0.35) %, = 0.010), but not in those of normal weight (-0.41 (-1.45 to 0.63) %, = 0.436). Loss of fat-free mass was also significant between pre-Ramadan and post-Ramadan, but was about 30% less than loss of absolute fat mass. At 2⁻5 weeks after the end of Ramadan, there was a return towards, or to, pre-Ramadan measurements in weight and body composition.
Even with no advice on lifestyle changes, there are consistent-albeit transient-reductions in weight and fat mass with the Ramadan fast, especially in people with overweight or obesity.
斋月期间要从日出到日落禁食一个月。在这项荟萃分析中，我们旨在确定斋月禁食对体重和身体成分的影响。
2018 年 5 月，我们检索了六个数据库，以获取在斋月前后测量体重和身体成分的出版物，且这些出版物未试图影响体力活动或饮食。
从 70 篇出版物中收集了数据（90 个比较组，2947 名参与者）。起始体重指数与禁食期间体重减轻之间存在显著正相关。超重或肥胖人群的体脂百分比在斋月前后有显著降低（-1.46（95%置信区间：-2.57 至 -0.35）%， = 0.010），但体重正常人群则无显著降低（-0.41（-1.45 至 0.63）%， = 0.436）。斋月前后，去脂体重也显著减少，但绝对脂肪量的减少量比去脂体重少约 30%。斋月结束后 2⁻5 周，体重和身体成分恢复到或接近斋月前的测量值。
即使没有关于生活方式改变的建议，斋月禁食也会导致体重和体脂的持续减轻，尽管是暂时的，尤其是在超重或肥胖人群中。
