The vast majority of parents support mandatory nutrition labels at restaurants to help fight childhood obesity.

Ninety per cent of respondents to a recent Public Health Agency of Canada survey support a law requiring fast food restaurants to post their calorie and fat content.

Parents said while the children don't care about the nutrition of the food they eat, they'd like to make better informed decisions.

"I think it would be nice to know," said Tanya Hawa. "I think you would think twice before ordering."

Jess Ross added she was at a restaurant that did list calories and chose a smaller burger because of it.

Ottawa's medical officer of health said the idea is to get children thinking about what they eat at an earlier age.

"About half of Ottawa's population in general is overweight and inactive," said Dr. Isra Levy.

In fact, a quarter of Canadian children are overweight or obese.

Public health officials are calling a huge problem as it can lead to diabetes and heart disease.

One mother said there's still a big role to play for parents.

"I think it's the parent's influence that is going to determine whether they are going to be a healthy eater or not," Hawa said.

With a report from CTV Ottawa's Vanessa Lee