Jenny McCarthy, Evan McCarthy and Jim Carrey lead the 'Green Our Vaccines' march, rally and press conference at the Capitol Building and West Capitol Grounds. Washington DC, USA - 04.06.08

Carrey spoke out during a march in Washington D.C. on Wednesday (4Jun08) to raise awareness of the presence of toxins in vaccines, which McCarthy claims was the cause of five-year-old son Evan's condition.

The actor, also accompanied by his 20-year-old daughter Jane, said, "He taught me how to love. And without Evan I might never have seen the greatness of Jenny's spirit.

"(Jenny is) the source of all that is good (in my life)."

Source: WENN