Effect of Ramadan intermittent fasting on renal and liver function markers among healthy overweight and obese males: A prospective cohort study

Intermittent fasting (IF) has garnered attention for its potential to promote health and combat chronic diseases. This study focused on the effects of Ramadan fasting, a form of IF observed by Muslims, on renal and liver function markers, anthropometric measurements, and dietary intake in healthy overweight and obese men. The study involved 60 participants from Hargeisa, Somaliland, with an average age of 40.01 ± 7.99 years. Results revealed significant reductions in body weight (P ≤ 0.001), waist circumference (P ≤ 0.001), and body mass index (P ≤ 0.001) after Ramadan fasting. Urea levels decreased significantly (P = 0.003), and though creatinine levels showed a non-significant decrease, uric acid levels increased significantly within the normal range (P ≤ 0.001). Serum glutamate oxaloacetate transaminase (GOT) levels decreased significantly (P ≤ 0.001), while glutamate pyruvate transaminase (GPT) and alkaline phosphatase (ALP) levels remained stable. Dietary analysis indicated a significant decrease in total carbohydrates (P = 0.023), proteins (P = 0.006), and dietary cholesterol intake (P ≤ 0.001). These findings suggest that Ramadan fasting positively impacts anthropometric and renal-liver function markers in healthy overweight and obese men. The study contributes to the expanding understanding of intermittent fasting's potential health benefits, emphasizing the importance of considering Ramadan fasting as a preventive approach for metabolic disorders. Further research should explore long-term effects, mechanistic insights, and personalized clinical applications, while public health initiatives could educate individuals about safe and informed fasting practices.