Many farmers and ranchers consider this tall, prickly, sap-containing plant to be nothing more than a weed, and so treat it as an infestation. Ironically, however, herbalists on several continents have for centuries employed milk thistle seeds, which contain a powerful compound called silymarin, for liver health, gallstones, detoxification, and even as a protective agent against certain kinds of mushroom poisoning.
And thanks to exciting medical research that has been ongoing in America and Europe over the last forty years, milk thistle has increasingly begun to be viewed as a cash crop by some.