CHICAGO (CBS)–Illinois is among six states suing the U.S. Department of Agriculture over claims officials weakened nutritional standards for school lunches.

The lawsuit is in response to a 2018 USDA rule that changed nutrition standards set in 2012, which restricted sodium and increased whole grain levels in meals served in schools.

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In the lawsuit, the states allege the USDA violated federal law by not allowing for public comment ahead of the rule change, and that the change was “arbitrary and capricious.”

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