The city of San Francisco has announced a lawsuit against major food manufacturers, including Kraft, Mondelez, Coca-Cola, and Pepsi, accusing them of contributing to public health costs associated with ultraprocessed foods. The city attorney, David Chiu, stated that these products are linked to significant health issues and has taken aim at the food giants for their role in the rising burden of diet-related diseases. The announcement of the lawsuit has led to a slump in food stocks, as the city seeks to hold these companies accountable for the impact of their products on public health.