After making a brief comeback on school lunch menus, white bread and other refined grains may be vanishing again when schools reopen after a federal court threw out the Trump administration’s rollback of school nutrition standards. The U.S. district court in Maryland this week said the administration did not give adequate public notice of the change, which had gone into effect for this past school year. The ruling was in response to a lawsuit brought by the Center for Science in the Public Interest and Healthy School Food Maryland. The U.S. Department of Agriculture said it does not comment on...