All heavy metals are toxic. If you and I would be exposed to enough silver, we would be in trouble.
Water is toxic if you drink enough of it.
OK........
Why expose yourself to something you do not have to?
Humans have been exposing themselves to silver, including silver nanoparticles, for thousands of years. Apart from the risk of your skin going a bit blue if you regularly drink colloidal silver, if there were going to be adverse health effects from contact with it you'd think they'd have emerged by now.
