YES! That's exactly what I'm afraid of... them using it in our foods without our knowledge! How do we know they aren't already doing this in a variety of our foods? They certainly aren't about to tell us and to top it off, it would be perfectly legal. Oh, they might list some long ingredient that we'd have no idea of what it was. Who knows what many of the ingredients are that are listed on foods and what they are without researching a ton... and who has time for that? Outrageously, it seems we need some kind of law against using ANY human by-product in our foods.