I totally understand the impetus with meat products to maximize gains and make everything a product for profit's sake, but as you also illustrated that Epinephrine being for medical use might restrict how it can be harvested.

That was kind of the nuts and bolts of what I was asking about, I've tried googling around because I'm curious and its not the easiest to find citable sources on whether meat or dairy cows are also harvested for their adrenal glands. I suppose the biggest question is how much more difficult it is to synthesize vs harvest, as I'm sure whichever is easier and cheaper is where most of it comes from.