This Question can also be asked by a Muslim that why Allah Swt has ordered us to Fast in the Holy Month of Ramadan? Basically There are Many Reasons For Fasting in the Month of Ramadan and Benefits as well which I will explaining one by one below.
First Purpose of Fasting in the Holy Month of Ramadan is because it is order of our Creator Allah Swt and we should follow whatever Allah Swt has ordered us in Holy Quran.
Second Reason of Fasting in the Holy Month of Ramadan is that by Fasting we will feel pain of poor people who cannot Buy Food because they have no Money. Today Millions of People in Every Country of the World Sleeps Hungry because they have no money to buy food. When we will Fast in Ramadan and feel the pain of poor you will try to help those poor people.
The Next Reason for Fasting in Ramadan is that Fast stops us from doing Sins. Fasting is not just name of staying away from the Food but also staying away from all sins like Lying, backbiting and abusing. According to Hadith of Prophet Muhammad as well Fast is not just stopping yourself from eating but also controlling your hands, Tongue from hurting others. Allah Swt also says in Quran that Fasting in Ramadan is obligatory on you so that you do Taqwa.
Next Purpose of Fasting in Ramadan is that it is very beneficial to our Health specially to our stomach. its also helpful against diabetes, heart disease and helps in reducing weight.
So these are some of the Main Purpose of Fasting in Holy Ramadan. May Allah Swt help us all in benefiting fro mall these Purpose of Holy Ramadan.