With the advent of the new moon of Ramadan, Muslims are competing in carrying out the obligations and Sunnah acts to draw closer to Allah The Almighty and to receive the reward in the month of Ramadan. When Allah The Almighty prescribed fasting, He granted concessions for certain categories of people. Allah The Almighty Says (what means): {So whoever among you is ill or on a journey [during them] - then an equal number of days [are to be made up].}[Quran 2:184] Therefore, we have to understand that Allah The Almighty has enjoined us to fast for a purpose which will bring about benefit for us. By no means could fasting be intended to inflict harm from a health standpoint, especially for diabetic patients.

• Diabetes is a condition that requires a pause with the fasting of Ramadan. There are a group of diabetics who are allowed to fast while others are at risk in the event of fasting. In order to understand the medical reason for that, we should clarify the following points:
• A diabetic patient is exposed to low blood sugar levels during the day in Ramadan, as well as in the second half of the day (after the Iftaar (fast-breaking meal)). The patient abstains from eating, especially sugars, for hours throughout the day, and since he does not store sugars in the liver, he cannot use this method to retrieve sugar from the liver to the blood like healthy people. This exposes him to low blood sugar levels, but with varied danger depending on the type of condition and medication being taken.
• Diabetics who are taking insulin are at risk of coma while fasting, while those treated by a healthy diet suffer from low blood sugar levels that is less serious, represented in the following signs: feeling hungry, shivering, dizziness, and cold sweating. This requires taking necessary actions quickly such as eating quick sugars like juice or chocolate – followed by slow sugars like bread. Otherwise, it is possible that the situation develops into a coma.
• Additionally, there is the danger that blood sugar levels will rise during the night of fasting because of the excessive appetite after a full day of fasting. Also, having one's meal with the family encourages the person to eat more, as well as the fact that the majority of dishes prepared during the blessed month are either made of quick sugars or eaten accompanied by quick sugars.

• Diabetic patients treated with insulin from childhood and youth must not fast, because the level of sugar at this stage is not stable, where the decline in the percentage of sugar in the blood is certain and dangerous in the case of fasting. It may result in a coma associated with serious complications with regard to the function of the brain if the patient could not receive exact and very rapid treatment.
• Diabetic patients treated with diet and pharmaceutical drugs can fast if the blood sugar level is steady and they do not suffer from any problems in the kidneys or the liver.
• Diabetic patients suffering from liver failure must not fast, because fasting entails danger to their lives, sometimes leading to coma.
• Diabetic patients suffering from kidney failure must not fast, because they need a certain amount of liquid that cannot be achieved regularly with fasting.

• Simple sugars: they consist of one or two molecules of sugar (glucose, fructose and sucrose). For example, a sugar cube put in a cup of tea in the morning falls under the category of quick sugars, as well as all the sweets commonly eaten in the month of Ramadan. They are also able to give you instant energy that can be exploited.
• Complex sugars: they contain carbohydrates, consisting of a long chain of molecules, such as those found in sweet potatoes or various types of cereal crops. These are considered slow sugars because they gradually give you energy after eating and allow you to exert effort for a long time.