Ontario doctors say it’s time to fight obesity, using the tools that worked in the battle against smoking. The Ontario Medical Association is launching a campaign to combat the root causes of obesity, especially fatty and low cost food. President of the OMA, Doctor Doug Weir says the problem is growing. Stats show that 60 percent of adults in Ontario and 31 percent of children are obese or overweight. The OMA says junk food should come in packaging containing graphic images of the toll obesity takes on the human body. They’re also calling on governments to raise taxes on junk food and restrict marketing of fatty or sugary foods directed at children. Officials say obesity is costing the health care system close to $2.5-billion a year.