Once a staple in schools across the U.S., the Lunchables brand is now hitting some tough times according to data from consumer trend company Circana. Sales of the snack kits dropped 12% last quarter. This data comes not long after parent company Kraft Heinz announced it was pulling Lunchables from the National School Lunch Program. Critics of the brand said Lunchables aren't healthy enough and the products have faced big competition from other brands in recent years. RELATED STORY | Consumer Reports 'applauds' Kraft Heinz for removing Lunchables from school lunch programConsumer Reports petitioned the U.S. Department of Agriculture earlier this year to remove Lunchables from the school lunch program after testing the products for lead and sodium. Kraft Heinz maintained that the snack kits tested "well below the acceptable limits." Nevertheless, Lunchables were pulled from the program because the demand for them did not meet targets, the company said. Kraft Heinz has promised big changes for Lunchables moving forward and said turning the brand around is a top priority.