Almost certainly. And, unlike real sugar, eating HFCS doesn't seem to stem the craving for sweets at all.
The solution seems to be to eat natural fats and natural sugars (in moderation), and avoid trans-fats and HFCS - which is very hard since those two ingredients are in just about everything that comes pre-packaged.
I know. I read the ingredients on every cracker box in the grocery story, and Original Triscuits is the only cracker I found that didn't have those two items. I make a lot of stuff from scratch just to avoid them. Then I find out that the Yoplait yogurt that I put in my husband's lunch has HFCS, so I started making yogurt. But he doesn't like it much compared to Yoplait. One can only do so much!
Carolyn