Islamically,fasting is a good thing because during fasting,not that it is only your mouth that will be illegal to eat but all your part of the body,you must abstain from sex,you must abstain from everything God ask us not to do,you must help other.
Ramadan is just like school you go for one month,so after the one month if schooling then you will be mastered to give people,to always help people and that's important of fasting especially Ramadan to the world