My daughter has significant food sensitivities. Certain foods cause dramatic behavioral changes. Dyes are a problem. Corn is a problem. Soybeans are a problem. Chemicals in the food are a problem. We've learned the hard way to be very careful about what she eats.

So I'm suspicious of "it's just the same". Yeah, it is, except for the traces of stuff where it's not. Those traces may not matter to most people. (Then again, they may - prions, anyone?) But to at least some people, the small differences really matter, not because of their taste buds or their feelings about their food, but because they legitimately react strongly to some things.

But you, why are you so eager to discredit someone whose viewpoint (I assume) differs from your own? Why are you so eager to ascribe bad faith or ulterior motives to someone?