Here is a link to the description of how HFCS is made. No wonder we have problems with it, there is probably much more in it to cause problems than just the fructose.
I have been returning to cooking everything without convenience ingredients. I have even stopped buying those peeled carrots when I found out they have a preservative on them.
Do you know there is something called "Enhanced Pork" -- meat injected with a solution of water, salt, and sodium phosphate which apparantly may not be labeled as such.
There is another great website http://www.cooksillustrated.com/default.asp which has tons of information on the foods we cook with--it has reviews of best brands of ingredients.
Another helpful website has Recipes Clones (some are free) like one for Heinz Ketchup which can be made with IBS safe ingredients. http://www.topsecretrecipes.com/recipes.asp G