It's much more than icky!  In a natural living organism, evolution designs robust, self protecting (as in immune system) systems.

We have seen artificial confined animal feeding operations (CAFO) destroy these immune systems, producing anti-biotic resistant disease breeding food chain problems.  Is GMO soon to add genetic disease to the equation?  It messes with the very evolutionary design down to the bacterial, viral, cellular, DNA level.  ICK!!!!

The amount of pathogenic toxicity is exponentially proportional to the amount of life bending biochem manipulation.  

Stick to animal products from happy animals, free range grazing until they are ultimately eaten.

If you don't agree with the life/death equation of meat eating, go with veggie products.  All the nutrition and taste needed is in those plants!

The eco problems from agribizz chem meat are better solved with biogas power and organic ag working hand in hand.  And good old free range living for the animals.  Free the chickens!!  (thanks fat fredddy)