I'm far from a nutcase on HFCS, but I've noticed two things....
1) The Corn Lobby has been buying time on TV stations promoting HFCS as sugar....just the same as cane sugar, beet sugar, etc etc etc. I start yelling at the TV..."FRUCTOSE and SUCROSE are NOT THE SAME THING!!!!". So far, the TV hasn't responded to me. Mrs WBill did ask me, however, if I knew how funny I looked.
B) My wife decided that we'd cut back on HFCS. We're a little more cognizant of whether or not it's in what we're eating, and are changing what we buy, accordingly. I found HFCS in a ton of stuff that I'd never think of (Bread! Ketchup?!) and HFCS listed in the top 3 ingredients in a whole lot more (soda..duh, peanut butter).
As a result of these cutbacks, I've noticed that I feel fuller and don't eat as much. For instance, I used to have a couple of PB sandwiches for lunch, now one fills me up just fine. Interesting, sez I.
If you want to fatten cattle you feed them corn.
Other issues are somehow (don't remember exactly how) related to the feeling of hunger, it throws a wrench into the biological mechanism that lets you when you're full.
Gimme a tall sun tea with a squeeze of lemon on a hot day.