In 1999, the FDA ruled that colloidal silver products aren't safe or effective and later sued several manufacturers over ...

Of course, not all supplements are harmful, as many companies go above and beyond to ensure their products are ... claims about the health benefits of taking colloidal silver, particularly that ...

Likewise, in 2009, doctors in the UK reported the case of a 64-year-old man who turned silvery after drinking a liter of water containing colloidal ... take any silver-containing products.