I

ed at the idea that one needs fats and sweets to be regular. Sweets do, indeed, losen me up quite a bit, too much sometimes. But that's not a healthy thing. In fact, I'm almost positive sugar was giving me IBS pain. I've been in a lot less pain since nearly completely quit sugar.
Since I took up jogging, I have been experiencing more "cement" like poop. I upped my water intake a bit, and it really helped. But I've always been a once a day, every morning person. I think I've heard that you can train a habit with your bowels by trying to go every day at the same time. Your body catches on.
I agree with the nurse though. Everyone is different, and as long as you are going at least every 3 days, you're fine. One thing to keep in mind: the longer it sits there, the harder it gets, as your body leeches more water from it.
Ah, the human body....