I appreciate your prompt reply! However, I can't parse your post because I can't come up with a word for "it", as used in your sentence. I've tried "meat", but it doesn't work.

Could you please elaborate on what you are trying to say?

Are you trying to write that chemicals are put into meat before it leaves the factory to cancel out all the other hormones, drugs, and other chemicals that have been part of the cow's entire life? I've heard of many studies where that is not the case at all. In fact, the use of hormones in poultry is banned--is it because hormones don't transfer to humans, or because they do? Though meat from cows doesn't need to be hormone-free... does it mean it's organic, and that the cow was fed the way it would be normally? I don't think so.

In your case, what about the possibility that since corn is almost exclusively used to feed cows even though it's not their normal food, shows that it must provide some benefit to the owners, one of which may be that the cows grow fatter from the same amount of corn versus the same amount of another plant? That would be one example of a situation where a bad trait can be developed for those who eat corn and for carnivores who eat that meat, without chemicals. Thanks!