Hacker News Reader

> UK here for context. We only have to fast for 12-24 hours prior to the colonoscopy. You can drink water or plain tea (no sugar, cream or milk).

Are you saying you only have to fast, without laxatives/prep? How does that work? I find it hard to imagine that anyone's colon is clean enough to get a good view after only fasting for a day?

View on HN

Based on how much my need for toilet paper depends on what I’ve been eating recently, I suspect diet makes a massive difference to how clean you are inside.

Not sure how waiting longer than 24 hours is going to get you much cleaner in any case.

We have to take laxatives as well. The night before the appointment usually. That's when you must start fasting.

Reply on news.ycombinator.com