Background:Many Moslem patients do observe the fast-during Ramadan. We report our experience with type 1 diabetes patients on continuous subcutaneous insulin infusion during Ramadan. During this time, Muslims refrain from eating, drinking, smoking, sexual intercourse and administering oral drugs from sunrise to sunset daily for 29 to 30 days (Lunar month).

Objectives: This study was designed to evaluate the effect of insulin pump therapy on the metabolic parameters specially the glycated HbA1C, lipid profile and body mass index in(T1) diabetics treated with insulin pumps during the fasting of Ramadan.

Patients and methods: This observational study was conducted in the insulin pump OPD in the diabetes and Endocrinology center located in Tripoli-Libya during the Fasting month in the Year 2017(1438 Hijri). A total of 35 patients were evaluated (24 female &11 males). Data on sociodemographic characters (age, sex, educationallevel,occupation) as well as Anthropometric measurements were taken. The data was obtained using a face-to-face interview, the measurements were taken using a structured questionnaire, and lastly, bloodsamples were collected for testing, glycosylated hemoglobin (HbA1c), Lipid profile, urea, and creatinine.

Results: This study included 35patients with type 1 diabetes mellitus treated with insulin pumps (11 males and 24 females). The mean participant age was 27.80±10.23 years. The mean body mass index (BMI) of the participants was    27.84 ± 9.02/kg/m2. All patients has received the same team instructions. Among all participants, the average readings level of HbA1C, low density lipoprotein, high density lipoprotein and triglycerides and were significantly lower after finish of Ramadan as compared with before Ramadan (P < 0.05). Conclusion: these results revealed that type 1 diabetic patients on insulin pump therapy could fast Ramadan with significant good impact on HbA1c and lipid profile.