Studies On Islamic Fasting

Dr. Soliman, from the University Hospital, Amman, Jordan (ref. 8) has reported that during the month of Ramadan 1404 AH (June-July, 1984 AD) healthy Muslim volunteers; 42 males and 26 females, ranging in age from 15-64 and 16-28 years respectively were studied.

They were weighed and their blood levels of cortisol, testosterone, Na, K, urea, glucose, total cholesterol, high density lipoprotein (HDL), low density lipoprotein (LDL), triglycerides (TG) and serum osmolality were measured at the beginning and at the end of Ramadan.  

There was significant loss of weight in males form a mean of 73.8 +- 6.2 kg 72.0+- 7.1 kg (P less than 0.01) and in females from 55.2 +- 4.8 to 54.6 +- 4.2 kg (P less than 0.05).  

Blood glucose levels rose in males from 77.7 +- 23.6 mg/dl to 90.2 mg/dl (P less than 0.05) and in females from 76.0 +- 7 mg/dl to 84.5 +- I 1.1 mg/dl (P less than 0.002).

All other parameters did not show significant changes. 

Dr. F. Azizi and his associates (ref.9) from the University of Medical sciences, Tehran, Iran has reported the following.  

Serum levels of glucose, bilirubin, calcium, phosphorous, protein, albumin, FSH, LH, testosterone, prolactin, TSH, TI, TI, and T uptake, as well as prolactin and TSH responses to TRH were evaluated in group of nine healthy men before and on the 1Oth, 20th and 29th days of Ramadan.  

Mean body weight decreased from 65.4 +- 9.1 to 61.6 +- 9.0 kg at 29th day.

 Serum glucose decreased from 82 +- 4 mg/dl on the 10th day, and increased thereafter (76 +- 3 and 84 +- 5 on the 20th and 29th days of fasting respectively).

 Serum bilirubin increased from 0.56 +- 0.17 to 1.43 +- 52 mg/dl on the 10th day, and decreased thereafter (I. I.+- 0.4 on the 20th and 29th days.)

 All Changes returned to basal values four weeks after fasting.

 There were no significant changes in serum levels of Ca, P, protein, albumin, and any of measured hormones. Prolactin and TSH responses to TRH were also unaltered.

 He concluded that:

 (1) intermittent abstinence from food and drink for 17 hours a day for 29 days does not alter male reproductive hormones, hypothalainic-pituitary-thyroid axis or peripheral metabolism of thyroid hormones and

 (2) physicians caring for Muslims should be aware of changes of glucose and bilirubin during Ramadan.

 Therefore it is concluded from the above two studies that Islamic fasting does not cause any adverse medical effect and may have some beneficial effect on weight and lipid metabolism.