FDA cracks down on autism treatment

Products called chelators that are sold over the counter as treatments for autism, heart disease and other conditions are dangerous and illegal, the U.S. Food and Drug Administration warned in a crackdown announced Thursday.

The chemicals, which help remove metals from the body, are potent drugs that carry serious risks, including kidney damage, dehydration and even death, said FDA Medical Officer Dr. Charles Lee. "Chelation can be dangerous and can cause serious harm," Lee said.