The city of San Francisco is suing four Chicago-based food giants, as well as other major snack food makers, for manufacturing addictive ultra-processed foods and knowingly sickening consumers.

The lawsuit, filed Tuesday by San Francisco City Attorney David Chiu in San Francisco Superior Court, names leading manufacturers such as Chicago’s Kraft Heinz, Mondelez International, Kellanova and Conagra Brands, as well as Post Holdings, Coca-Cola, PepsiCo, General Mills, Nestle USA, Kellogg and Mars.

“Our reliance on ultra-processed foods is decades in the making, and we are not going to be able to reverse that overnight,” Chiu said, during a news conference. “This lawsuit should be the beginning of how we ensure accountability.”

Chiu — who stood near a table filled with snacks such as Mondel

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