I have eaten meals of over 1000cals multiple times in a day, but I don't think I've done it everyday when I was going for size. Can't really remember, though. When I did it I'd sometimes get a stomach ache, and it was several of 6 meals in a day. Sometimes it was like this:
#1- 700kcals
#2- 1000
#3- 1000
Then the last meals had anywhere from 300 to 800.