Bill to fortify corn masa with folic acid advances after heated debate

Representative Pei, the bill’s sponsor, told the House Oversight Committee that House Bill 19‑12 (the "Korn Masa Nutrition Enhancement Act") aims to reduce neural‑tube defects by adding folic acid to corn masa products and to preserve parental choice through carve‑outs. "NTDs are folic‑acid sensitive, so it is preventable with folic acid," Pei said, and she cited state data that, she said, shows annual spina bifida cases fell from about 74 before fortification in 1998 to about 37 per year in recent years.

Pei and supporters framed the measure as a targeted public‑health intervention. She said the bill’s formatting and exemptions were drafted with industry input and that certifying mills already working toward fortification would reduce disruption. The sponsor described fortification as a low‑dose, population‑level approach and argued it was a pragmatic way to prevent birth defects early in pregnancy, when many women are not yet aware they are pregnant.

Opponents and several committee members pressed proponents on safety, choice and data. Representative Hildebrandt questioned whether Oklahoma‑specific evidence supports becoming "the third state in the union" to mandate fortifying corn masa, and raised studies she said link high folate exposure to vitamin B12 depletion and other possible harms in subgroups. She asked Pei for Oklahoma data and whether the state had evaluated risks for people with the MTHFR gene variant; Hildebrandt said she had found peer‑reviewed studies raising concerns and urged the committee to seek more local data before mandating fortification.

Representative Roe and other backers stressed that the neural tube closes by roughly 28 days post‑fertilization, often before pregnancy is recognized, and that population fortification has been associated with reductions in NTDs. Roe said earlier fortification of enriched wheat flour coincided with national declines in neural‑tube defects and argued the measure includes carve‑outs to respect parental choice and medical exceptions.

The committee discussed technical details: proposed fortification concentrations, exceptions for alternative folates, and the fact that L‑methylfolate or folinic acid are currently not approved for use as fortificants by the FDA, making folic acid the available option for grain fortification today. Industry stakeholders were reported to be at the table in drafting, and the sponsor said the bill’s mandatory language would be refined ("title will be coming off of this") only if stakeholders agreed.

Committee debate was extensive and at times pointed, with members citing public‑health benefits, fiscal costs of lifelong care for affected children and concerns about imposing a statewide mandate on a diverse population. After debate and amendments intended to preserve choice and carve‑outs for medical exceptions, the committee voted 9‑5 to report House Bill 19‑12 out as a do‑pass.

What’s next: the bill was reported out of committee and will proceed through the legislative process for further consideration and possible amendment.