Ontario's education ministry has 'clarified' its restrictions on chocolate milk sales in the province's schools.

The new rules will still allow the sale of chocolate milk in containers larger than 250 millilitres to high school students.

Younger students will be restricted to servings of 250 ml, or one cup.

The chocolate milk issue flared up in the legislature last week.

The Progressive Conservatives crowed that the Liberal government backtracked on a ban of the larger containers in response to their questions.

The government said at the time it had never intended to ban chocolate milk.

However, starting in September 2011, it will now control the sale of such fare as fried foods, energy drinks and candy bars on school property.

School principals will have 10 exemption days available to cover events such as bake sales, pizza days and sporting events.

The government said back in January that almost three in 10 Ontario children between the ages of two and 17 are either overweight or obese. This puts them at risk of diseases such as diabetes.

Fewer than half of Ontario children between the ages of 12 and 19 eat the recommended daily minimum of fruits and vegetables, it said.

The new nutritional standards stem from the Healthy Food for Health Schools Act, 2008.