I agree about the "RED" colored stuff -- they don't want that, so they can see more clearly (as purple has red in it too). We may do things a bit differently in Canada, but we weren't allowed scrambled eggs (nothing solid) -- only jello, pure fruit juices, regular pop (with sugar), soup broth, gatorade, plain tea or coffee, and water. We were required to drink sugar drinks & the broth to keep our electrolites balanced.
I thought I might have trouble, but I didn't becuz I found the jello & the broth made me feel quite full (esp the jello). I had 1 cup hot chicken broth & 1 cup jello for each meal. I drank the juice and pop, etc in between as we had to drink so many cups over the day (I drank 1 cup each hour, I think).
We had to take the cleaning prep twice. We were allowed a light breakfast the morning of the day before the procedure day, and the liquid foods from then on. I had 2 polyps removed so I couldn't eat until the next night (dinner), the day after the procedure. I was allowed soup that night only (the day of the procedure).
Then at the hospital, they gave us some more prep mix to make sure we were completely cleaned out. I was not totally asleep (I woke up part way through); the guy had to keep giving me more meds -- he was new and apologized, saying that he was in training for life.
He had a good sense of humor. I was yacking at him a bit, but he said that he didn't mind that at all.
For me, I found them putting the IV in was the worst part of it all -- becuz I have very small veins and it took them about 10 tries to get it ... ouchy, ouchy. The nurses kept apologizing about that too ...
Here, they let you rest a while after the procedure to make sure you're OK (to check your vitals and all); and do require someone to drive you home. It's not that bad .... really.