Is it bad for your health to eat nothing apart from a bag of crisps for 22 hours?

I just haven't been hungry today, I had a bag of ready salted crisps and that was it for 22 hours. Does it damage your health in some way, and will it help me lose weight? (I'm trying to lose some weight.) I told my teacher once that I skip breakfast and lunch and just eat when I get home at four and she was horrified, I thought that was really weird at the time.