Maybe so. A new study suggests that popcorn and other whole grains, including some breakfast cereals, contribute more to health than just the fiber they contain. Many of these foods are rich in polyphenols, health promoting antioxidants also found in fruits, vegetables, wine, chocolate, coffee and tea. A study from the University of Scranton in Pennsylvania presented at the August, 2009, meeting of the American Chemical Society found that whole grains such as popcorn contain a "surprising large" number of polyphenols. The investigators said that the polyphenols in whole grain cereals and snack foods were "potentially more important" than fiber in reducing the risks of cancer and coronary heart disease. In fact, the research team noted that it found "comparable antioxidants per gram to fruits and vegetables." The most antioxidants were present in whole grain cereals made with wheat and, in this study; raisin brain had the highest amount of antioxidants per serving, thanks to the raisins. But corn, oats and rice cereals also contained polyphenols, in descending order. Among snack foods, the study found that popcorn has the most antioxidants. So eat up. But hold the butter.