Actress/model Jenny McCarthy has called on the U.S. medical community to recognise that diet and vitamins can help ease the symptoms of autism. MCCarthy, whose five-year-old son Evan suffers from the disorder, travels around America giving talks about the alleged benefits of natural medicines. But the blonde, who is dating Jim Carrey, wishes doctors would acknowledge how diets and vitamins can be used to treat autism. She says, "I've been speaking to moms across the country who are all shouting out the same thing: 'This (diet and supplement intake) is working.' "It's so heartbreaking to see the medical community not support something called diet and vitamins. And it pains us, city after city after city. I see this heartbreak on these mom's faces. "Autism isn't covered by (medical) insurance. If things like diets and supplements are working, then why not support it? These kids are getting better and I will not shut up and will not stop fighting about it."