Reality television star Kristin Cavallari is standing by her comment that she will not vaccinate her children because she believes it could cause autism.

On Friday, Cavallari stopped by HuffPost Live to discuss her new role on 'Fabulist,' and elaborated on remarks she made on Fox Business Channel the previous day.

"Vaccines are not something I wanted to publicly come out and speak on. I sort of got bombarded in this interview and thrown off-guard," said the celeb, who is married to Chicago Bears quarterback Jay Cutler.

"There's really scary statistics out there, and to each their own. Autism wasn't prevalent -- like it is now -- years ago, so something is going on, whether it's the chemicals in our food or the vaccines," she continued. "Something is happening, and we can't really ignore that. I choose to believe that I think it's in the vaccines but, again, to each their own and that's where I stand on it."

The topic of vaccination came up during Cavallari's interview on Fox with "The Independents" host and former MTV VJ Kennedy, who brought up their fellow MTV alum, Jenny McCarthy. McCarthy has been vocal in her opposition to vaccinations, claiming that they cause autism despite a multitude of scientific studies to the contrary.

Cavallari told Kennedy she has not vaccinated her young son, Camden, and that she does not plan to vaccinate her new son after he's born, either.

"You know what? I have read too many books about autism," Cavallari said on Fox, where the comment was met with immediate skepticism from Kennedy.

"There is a pediatric group called Homestead, or Home First? Pregnancy brain, I've got it confused," she continued on Thursday. "They've never vaccinated any of their children and they haven't had one case of autism. And now, 1 in 88 boys is autistic, which is a really scary statistic ... The vaccinations have changed over the years, there's more mercury and other..."

Cavallari's remarks come on the heels of a new study that found that public health groups' efforts to counter anti-vaccine activists' claims of a link between vaccines and autism could be backfiring, thus leading more parents to choose not to vaccinate their children. Such opt-outs, public health officials say, are likely contributing to a resurgence of preventable diseases like the measles and whooping cough.