I do this as well after being hypoglycemic and requiring food every 2 hours. I used the Lean Gains method which is also called Intermittent Fasting (IF). http://www.leangains.com/ Don't let the dude in the picture put you off. Really cool dude. I also experience better mental clarity and focus when I IF.
If you want to try it, it might be better to ease into it, for example try having some fruit instead of no food at all.