Folic Acid in Corn Tortillas: What California's New Law Means for the Tortilla Industry
5 min readCalifornia just became the first state to require folic acid in corn masa flour. Here is what that means, why it matters, and how it affects the tortilla industry.
- California now requires folic acid in all corn masa flour (effective January 2026)
- 10+ states are pursuing similar laws -- national fortification is likely coming
- Folic acid does not change taste, texture, or color of tortillas
- Major brands (Mission, Maseca) have already reformulated
What Happened?
Starting January 2026, California requires all food makers to add folic acid to corn masa flour -- the flour used to make corn tortillas, tamales, pupusas, and other traditional foods. It is the first state in the country to pass this kind of law.
Alabama follows in June 2026, and Florida, Georgia, Oklahoma, Oregon, Texas, Delaware, New Jersey, and Pennsylvania are all looking at similar laws.
Why Did They Do This?
The reason comes down to one simple fact: corn masa was accidentally left out of a national rule that has been saving lives for nearly 30 years.
In 1998, the U.S. government started requiring folic acid to be added to wheat flour, white bread, cereals, and pasta. This one change cut serious birth defects by about 30% and prevents roughly 1,300 cases every year. It is considered one of the biggest public health wins of the 20th century.
But corn masa flour was not included in that rule. For families who eat tortillas and tamales as a daily staple instead of wheat bread, that meant they were missing out on this protection entirely.
What is Folic Acid and Why Does It Matter?
Folic acid is a B vitamin that plays a critical role in how a baby's brain and spine develop in the earliest weeks of pregnancy, often before a woman even knows she is pregnant.
When a mother does not get enough folic acid, the baby can develop what doctors call neural tube defects. These include:
- Spina bifida, where the spine does not close properly, which can cause lifelong physical challenges
- Anencephaly, where the skull does not form correctly, which is almost always fatal
About 2,000 babies are affected by neural tube defects every year in the United States.
Why Are Hispanic Communities Hit Harder?
Hispanic women have the highest rates of neural tube defect pregnancies in the U.S. In California, the rate among Hispanic mothers is twice as high as for white or Black women.
Researchers believe this disparity exists because many Hispanic families rely on corn-based foods like tortillas as their primary grain source, rather than the wheat-based breads and pastas that already contain folic acid. When corn masa was left out of the 1998 fortification rule, it created an unequal gap in protection.
More than 40% of U.S. pregnancies are unintended, which means many women are not taking prenatal vitamins before they conceive. That makes fortified everyday foods (the foods people eat without thinking about it) is the most reliable way to deliver this protection.
What the Tortilla Industry is Doing
Major producers are already on board:
- Mission Foods now adds folic acid to all of its branded and private label corn tortillas in the U.S.
- Gruma Corp. (parent of Mission Foods and Maseca) says 97% of their retail sales already include folic acid, with the rest expected before July 2026.
- Maseca has been selling some fortified varieties since 2016.
Jim Kabbani, head of the Tortilla Industry Association, says the industry initially had concerns about flavor changes and labeling costs, but those worries have faded. "I think overall the train has left the station and it will be more and more states," he said.
Does Folic Acid Change the Taste of Tortillas?
No. At the small amounts used for fortification, folic acid does not affect the flavor, texture, or color of corn tortillas or masa products. The amounts are tiny, measured in micrograms per serving -- and are the same type of fortification that has been used in wheat flour since 1998 without any noticeable taste difference.
If you are curious about corn tortilla nutrition and health benefits, folic acid fortification only adds to their nutritional value.
Is Folic Acid Safe?
Yes. According to the Centers for Disease Control and Prevention (CDC), folic acid at fortification levels "has never been shown to harm individuals or populations."
There are claims on social media that people with a gene variation called MTHFR cannot process folic acid. The CDC has directly addressed this: "People with the MTHFR gene variant can process all types of folate, including folic acid."
Even the current federal dietary guidelines support fortification, calling folic acid from fortified foods "critical" before conception and during early pregnancy.
Do Corn Tortillas Have Folic Acid?
It depends on where you live and what brand you buy:
| State | Status | Effective Date |
|---|---|---|
| California | Required | January 2026 |
| Alabama | Required | June 2026 |
| Florida, Georgia, Oklahoma, Oregon | Legislation pending | TBD |
| Texas, Delaware, New Jersey, Pennsylvania | Active interest | TBD |
| All other states | Not required | N/A |
In 2023, a review found that only about 1 in 7 corn masa flour products and zero corn tortillas contained folic acid. That picture is changing rapidly as major brands like Mission and Maseca have already reformulated.
What This Means for Tortilla Manufacturers
If you manufacture corn tortillas or masa products, here is what to know:
- California compliance is now mandatory. Any corn masa flour sold in the state must be fortified.
- More states are coming. With 10+ states actively pursuing legislation, national fortification is likely just a matter of time.
- Major suppliers have reformulated. If you source masa flour from Gruma/Maseca, your supply likely already contains folic acid.
- Label updates may be required. Check with your packaging supplier about updating ingredient labels and nutrition facts panels.
- Equipment is not affected. Folic acid fortification happens at the flour milling stage, not during tortilla production. Your existing equipment and parts do not need modification.
The Bottom Line
Adding folic acid to corn masa flour is a small change with a big impact. It costs very little, it does not change the taste or quality of tortillas, and decades of science show it prevents serious birth defects. The 1998 wheat flour mandate proved the concept. Now corn masa is finally catching up.
