(A) In an effort to promote optimal healthy eating patterns and academic success, the State Board of Education by policy shall establish requirements for all school food service meals and competitive foods provided in kindergarten through twelfth grade during the academic school year, which must meet or may exceed, the nutritional requirements established by the United States Department of Agriculture Food and Nutrition Service. The nutritional requirements must be continuously updated to reflect the current United States Department of Agriculture Food and Nutrition Service Standard. A school district board of trustees may adopt a more restrictive policy. This policy does not restrict the food that a parent or guardian may provide for student consumption at school.