Nothing we didn't know already.
http://www.stumbleupon.com/su/2rUCpr/www.thewvsr.com/adsvsreality.htm/
http://www.stumbleupon.com/su/2rUCpr/www.thewvsr.com/adsvsreality.htm/
Most food you see used in ads, especially by big companies like that, isn't even food at all. Styrofoam, plastic, paint, glue, etc., it's all "props". The "milk" you see in cereal commercials? Elmer's glue and water. The "cheese" in those pics? Probably about as edible as the cheese that comes with those kitchen sets little girls play house with (if kids these days even still do that anymore).
arbys is the worst offender. it is like eating an asphalt roof shingle.