<human>: I've read many times that eating too few calories can mess with your metabolism and it just overall a bad idea.  But is that just for long term?  For instance, yesterday I overate, or rather, overdrank, by having two beers, 300 calories over.  I was not hungry this morning so I skipped breakfast and now I added up my calories for the day, and it's going to be very low.  Tomorrow I will be back to normal, I'm sure.  Is this a functional way to count calories, to make up for the previous day?  I have a week counter on my loseit app, and sometimes I'm always trying to make up for bad days so that the week is under at the end of the week.

Could you distill the essence of the text into 1-3 sentences?
<bot>: is restricting your calories dramatically for one day going to cause health problems and will it help if you went over the day before?