A ham and cheese sandwich, muesli bar and milk popper might seem the typical combo for a school lunch box. But the differences in the overall nutritional value can be huge, depending on the brands.

Consumer group Choice has applied the algorithm for the healthy food star rating system – controversially removed by Assistant Health Minister Fiona Nash – to children’s lunch box staples, giving them the star ratings that could appear on packaged foods from July.

”We found big nutritional differences between similar-looking products, and this is critical when it comes to kids’ food,” said Choice campaign manager Angela Cartwright. ”Eat it every day, and it can add up quickly.”

via Your child’s lunchbox rating may be written in the stars, says Choice.