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While religious fasts are participated in predominantly for spiritual reasons, they also have the potential to influence one’s physical health. Sarri et al., (2003) studied these physical effects in a longitudinal study following 120 Greek adults. Of these 120 adults, 60 fasted whereas 60 did not. In this study they measured pre- and post-fasting blood collection, serum lipoprotein and anthropometric measurements. They showed that some of the favorable effects of fasting (compared to non-fasting) include the lowering of body mass (1.5% lower end-BMI for fasters), total cholesterol (12.5% lower for fasters), LDL-cholesterol (15.9% lower for fasters), and the LDL-cholesterol/HDL-cholesterol ratio (end-ratio 6.5% lower in fasters). In the end, Sarri et al., (2003) concluded that fasting periods contribute to a reduction in the blood lipid profile including a non-significant reduction in HDL cholesterol and could have a possible impact on obesity.