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Purpose

The aim of this study was to assess the effects of Ramadan fasting on several biochemical and anthropometric parameters in physically active men by comparing fasters and nonfasters before, during, and after Ramadan.

Methods

Eighteen physically active men (10 fasters and 8 nonfasters) participated in this study. Subjects visited the laboratory for a total of four sessions on the following occasions: three days before Ramadan (Bef-R), the 15 th day of Ramadan (Mid-R), the 29 th day of Ramadan (End-R), and 21 days after Ramadan (Post-R). During each session, subjects underwent anthropometric measurements, completed a dietary questionnaire and provided a fasting blood sample.

Results

Body weight and body fat percentage decreased in fasters by 1.9%(P< 0.001) and 6.2%(P= 0.003), respectively, but increased in nonfasters by 2.2%(P< 0.001) and 10.2%(P= 0.001), respectively, from Bef-R to End-R …