I came across this video on Epicurious. It was of a presentation given by a Dr. Robert Lustig who is a pediatric endocrinologist and professor of pediatrics at the Univ. of Calif.'s endocrinology dept. The video is 90 mins long, but I watched and found it riveting.
To summarize, he basically explains how fructose was developed and introduced to the American public/diet in the 1970's and how it has completely taken over our processed foods. It's use soared in the 80's once the low fat & fat-free craze took off and has continued to until very recently. It touches on some of the politics surrounding HFCS and the American Heart Assoc., American Medical Association and the USDA. But the science is what I really found interesting. He demonstrated how chronic fructose exposure promotes something called metabolic syndrome (type 2 diabetes, obesity, lipid issues, hypertension & coronary disease). He explained, in layman's terms, that fructose essentially is alcohol without the buzz. Fructose is a carb but it metabolizes like a fat and raises our small, dense LDL (the bad LDL).
Here is the link. I'm interested in what others think about this. I know the evils of HFCS have been aired and re-aired. But the concern seems to be waning a bit. And the corn and sweetened beverage industries are fighting hard with marketing and name changes.