Around one-third of the popular supplements aren’t what they claim to be.
What’s really in that herbal supplement bottle?
I doubt the prescription pharmaceutical industry is anywhere near this bad. A quote of a quote:
“This suggests that the problems are widespread and that quality control for many companies, whether through ignorance, incompetence or dishonesty, is unacceptable,” said David Schardt, a senior nutritionist at the Center for Science in the Public Interest, an advocacy group. “Given these results, it’s hard to recommend any herbal supplements to consumers.”
If you know me, you know I don’t quote CSPI very often.
Advanced Mediterranean Diet 
I read this article too and my first thought was who supplied the funding. You know, follow the money. The herb industry grows every year as people try to find alternative to pricey medications or like me doesn’t want to worry about side effects. My guess is that these unnamed herb companies were cherry picked and as is not unusual in the industry, the truth was twisted to make these companies look bad.
Remember that herbal and other “natural” remedies are not without side effects.