Hi Hedi, a good place to start is actually IDF/DAR guidelines. You can find them at this address:

https://www.idf.org/e-library/guidelines/87-diabetes-and-ramadan-practical-25

and the guidelines are free to download.

I hope this helps.

Best,

Edmond

http://care.diabetesjournals.org/content/27/10/2306.short

A Population-Based Study of Diabetes and Its Characteristics During the Fasting Month of Ramadan in 13 Countries

Diabetes and Ramadan: Review of the literature

http://www.diabetesresearchclinicalpractice.com/article/S0168-8227(06)00121-5/abstract

Ramadan Education and Awareness in Diabetes (READ) programme for Muslims with Type 2 diabetes who fast during Ramadan

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1464-5491.2010.02948.x

Salam Hedi

I recommend you to visit my RG page you will find some publications related to this topic. We have been working on for more than 15 years.

Meghit Boumediene Khaled

I stay to your proposal if you need any help.

Pr. Khaled MB