Overview
- Beginning January 1, 2026, most packaged masa harina, tortillas, and processed corn masa products sold in California must be fortified with folic acid.
- California is the first state to mandate folic acid in corn masa products, with Assembly Bill 1830 passing unanimously before being signed by Governor Gavin Newsom.
- The law specifies 0.7 milligrams of folic acid per pound of dry corn masa flour and 0.04 milligrams per pound for wet masa products.
- Small, independent tortillerías are exempt, while large manufacturers are expected to comply, and some, including Mission Foods, already fortify their products.
- Supporters cite research showing substantial reductions in neural tube defects with folic acid and note lower pre-pregnancy use among Latinas, while some tortilla makers raise concerns about potential taste changes.