Parents should ban their children from sugary drinks in an attempt to reverse the rise in childhood obesity, Queensland Health says.
Queensland chief health officer Jeannette Young said parents were failing their children abysmally by allowing them to drink lots of sugary drinks.
One in five Queensland children is overweight and a further one in 10 is considered obese.
Dr Young said there was only so much that governments could do.
"In the end it is the parents who choose what to put in their children's mouths," she said.
She encourages parents to start by cutting back on the consumption of soft drinks and sugar-laden fruit-juice drinks.
With up to 10 teaspoons of sugar in each 375ml can of soft drink, a child drinking one can a day will consume 18kg of sugar in a year.
"Many parents think (processed) fruit juice is a healthy alternative but it contains as much sugar as soft drink," Dr Young said.
Dr Young said unhealthy choices could set children up with bad habits that last a lifetime.
"Investment in our children's health is one of the most powerful investments a society can make," she said.
Queensland Health will partner with the Federal Government in developing initiatives to improve the nutrition and physical health of children.