Interesting follow-up on the FiberSure thing. When I first heard about it a few days ago (thanks Tracy!), I went to Walgreens and saw it on the shelves. I didn't buy it at the time because I wasn't convinced I wanted to try it.
Then yesterday I thought what the heck, I'll give it a go, and went to Safeway, but didn't find it there. I did see something called Metamucil Clear & Natural in a very similar package.
I just did a quick search and it turns out they may in fact be the same thing:
http://www.metamucil.com/clear-and-natural.php?ref=fJust thought I'd post this in case anyone else is on the hunt for it. I think I'm going to go back to Walgreens today, see if they still have FiberSure, and pick up a bottle and compare its ingredients with Metamucil Clear & Natural to make sure they are indeed one and the same, just because I'm anal (pun unintentional) like that.