Some of the most powerful medicines on the planet are masquerading around as foods and spices. While they do not lend themselves to being patented, nor will multi-billion dollar human clinical trials ever be funded to prove them efficacious, they have been used since time immemorial to both nourish our bodies, and to prevent and treat disease.
If you were told to ingest a biologically alien synthetic chemical whose presence on this planet did not predate 1976, and whose structure is only a few atoms away from the deadly pesticide DDT, and you knew that not only were there no long term human safety studies performed on it, but that it had been already proven in tests to have over a dozen serious adverse health effects, would you consume it?