Fasting actually benifits you in many ways

1. Fasting helps you lose weight
2. Its has a positive effedct on insulin sensitivity 
3. Your metabolism takes place faster
4. The less you eat the longer you will live 
5. It regulates homeones in the body making you feel hungry
6. It helps improve eating patterns
7. It also improves functioning of brain 
8. Fasting helps boost your immune system.

And ther are lots of benifits few's mentioning here just try it !