You thought that you are eating a cupcake, but then it turned out to be a lie. You see that you aren't actually eating a cupcake, but it is something entirely different. When such is the case, don't you feel cheated? Don't you want to turn into an angry dragon who spits fire? I would want to. If I am eating something, then I would want to know what exactly does it have. I want full transparency.
Such is the case with these items too. You thought you are having your favourite food item, but then the truth is, you are being fed a bunch of lies. Don your reading glasses to know some.