Calif. Top Court Won’t Review Cereal Cancer Warning Ruling

California’s top court won’t review a decision that federal law blocks state-mandated warnings about cancer risks associated with a chemical in cereals made by Post Foods LLC , General Mills Inc. , and Kellogg USA Inc..

But the California Supreme Court Oct. 31 ordered the lower court’s opinion not to be published. It therefore only binds the parties in this case and can’t be cited as legal authority in future cases involving chemicals in other foods and beverages.

At issue was acrylamide, which is formed when starchy food is heated and is found in cereal and many other foods ...