Fasting is a practice and numerous studies have examined different aspects of fasting. The current study is aimed at examining the effect of Islamic fasting on different anthropological and physiological changes like body mass index (BMI), Waist hip ratio (WHR), arm and wrist circumferences (Arm and Wrist C) as well as blood pressure (BP) in fasting. This is a cross sectional study in which three BMI groups of 55 fasting Muslim healthy males and 55 females in the age group 20-40 years were included. Detailed history and anthropometric measurements were carried out and blood pressure was taken in all the subjects, twice: once, at day one and last Ramadan. Data were investigated by using one-way ANOVA technique.Fasting significantly reduced BMI (Kg/m²) (P< 0.05; P< 0.05), WHR (P< 0.05; P< 0.05), SBP (mmHg) (P< 0.05; P< 0.05) and DBP (mmHg) (P< 0.05; P< 0.05) of overweight and obese males. BMI and WHR of were considerably reduced (P<0.05; P<0.05) in obese females as well. Average SBP of Post Ramadan females weresignificantly reduced (P<0.01; P<0.01). Post Ramadan normal weight and obese females showed reduced DBP (P<0.05; P<0.05).This study signified that Ramadan fasting caused significant reduction in BMI, WHR and BP in obese and overweight people who fasts.

Keyword: Blood pressure, Body Weight, fasting,