Earlier quoted context omitted.
Aren’t most “artificial” substances more likely to be carcinogenic or toxic than something occurring naturally? Or is that just my wacky personal bias talking?
There are plenty of "natural" carcinogens. Tobacco, for example, is perhaps the largest single cause of cancer in human history.
I'd imagine there is, or at the very least we'd have millions of years worth of evolution to learn to dislike the taste of naturally occurring things that are bad for us in the vast majority of cases.