This always seems to happen, but we still consume supplements, even though they are unregulated, and ANYTHING might be in them.
Case in point ...
From Medical News: The FDA issued a warning to consumers against using a a Mexican "natural" dietary supplement promoted for pain relief due to unlabeled and potentially harmful pharmaceutical ingredients.
The warning for Reumofan Plus was issued after the agency received a number of adverse event reports, including incidences of liver injury, sudden worsening of glucose control, weight gain, swelling, leg cramps, and adrenal suppression.
Medical News: Supplement Laced with Harmful Meds - in Public Health & Policy, FDA General from MedPage Today