Health officials then suspected that a
new ingredient called aegeline that was added to the supplement caused
the illnesses. Because the FDA regulates supplements only
after they come to market, companies are not required to prove that
their products are safe and effective before marketing them.
"This really points to the fact that there's no safety testing … before
a new ingredient shows up in a supplement in the United States," Cohen
said. "Guess who's the experimental animal — the consumer."
Read more here: http://news.yahoo.com/diet-supplement-causes-nearly-100-hepatitis-cases-215935222.html