In honour of this thread I ordered a whole pizza at work the other day.
Wow it was tasy. Ate 5 slices, put the rest on top of the fridge for later, about 4 hours later shared a slice with a mate here and ate the other two myself, 7 slices all together. Felt great. Actually had my best workout in the past two weeks the next day. I don't think if I did it every day it would be so good, but it did me no harm at all.
I must repeat though that had it been macdonalds, it may have been a different story...