Another reason to ban them nationwide — http://www.eurekalert.org/pub_releases/2009-06/uoia-tfh061609.php — They found that trans fat completely messes up a molecular pathway in your blood – displacing Omega-3 and Omega-6 fatty acids, disrupting blood flow, and promoting clumping.
The most interesting – and important – part of the press release? The scientist behind this research, Fred Kummerow, says that the current trans fat labeling system is expensive and misleading because if there is less than 0.5 grams of trans fat per serving (where serving size is at the discretion of the food company), it can be labeled “trans fat free.” Therefore, people can and are eating items with partially hydrogenated oils in them, assuming they are healthy. He also said that “Partially hydrogenated fats can be made trans fat-free,” Kummerow said. “The industry would be helped by an FDA ban on trans fat that would save labeling costs, medical costs and lives.” It seems like the FDA has some more work to do. For now, read the ingredients labels, and not just the blurbs on the packaging.