What age is it OK to fast?

What Age Is Suitable for Fasting?

According to one perspective, children as young as 4 years old can begin learning the practice of fasting. However, it's important to keep the duration of their fasting sessions short. Instead of fasting from imsak to sunset, children should only fast for 3-4 hours during this age, allowing them to gradually adjust to the practice without food for that brief period.