Tortillas sold in California may be forced to add new ingredient. New research shows why

Corn chips, tortillas, tamales and pupusas — while all delicious may be missing a key vitamin for women of reproductive age.

Folic acid has long been used to prevent serious birth defects and help babies develop. Medical and public health experts advise daily consumption during pregnancy, but also in the months before becoming pregnant. This B vitamin is so important the federal government requires folic acid in certain foods such as enriched breads and cereals.