Perfluoroalkyls can be sub divided into perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). These mind boggling names could literally be doing just that, boggling your mind AND your body. Usually the problem with chemicals ingested through food stem from the deliberate addition of these into the foods themselves, however in perfluoroalkyls case the chemicals actually contaminate the food during cooking. PFOA and PFOS have been arising in peoples blood tests, and there have been some correlation between high levels of this substance and peoples ingestion of microwavable popcorn. PFOA and PFOS are used to line the bags of microwavable popcorn in order to stop grease from leaking through the wrappers. Consequently perfluoroalkyls leach from the bag and into the popcorn itself, and regular ingestion of such chemicals can increase the risk of developmental and reproductive problems in humans!
Mercola.com. (2010). A Newly Discovered Reason to Avoid Fast Food and Popcorn. Retrieved 23rd June, 2014, from http://articles.mercola.com/sites/articles/archive/2010/12/01/chemicals-in-fast-food-wrappers-show-up-in-human-blood.aspx