In Ramadan, Muslims have to fast for a whole day before sunrise to sunset. So their meal timing is devided into two main meals. One is called sahoor and other is called aftaar.
Sahoor is the time before sunrise. In this time, a Muslim needs to intake healthy and nutritional food which may help him to spend a fresh day. He should avoid those foods which may cause any disturbance for his stomach.
Aftaar is a meal when a Muslim breaks his fast soon after sunset. It is also called the time of Maghreb. At this time, Muslim also needs to be careful about his diet because he remained supperless for many hours. He should select foods which may digest easily and prepare him to perform ibadaat of night. He should drink plenty of water continuesly at night to be Hydrated for next day.
For more information for healthy foods and drinks for Ramadan you can visit my these posts:
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