Why does Mexico want to ban GMO corn?

Mexico’s ban on biotech corn has left the U.S. ag industry baffled. Many U.S. ag industry leaders argue that Mexico’s stringent regulations on GMO corn are not based on science. However, experts with Ambrook Research explain that the regulation is not a matter of human health, but rather a way to prevent genetically modified crops from threatening the nation’s cultural food heritage.

In early 2023, the USMCA trade partner introduced a 50% tariff on white corn imports and modified regulations to ensure tortilla makers use only non-genetically modified white corn.

In Mexico, corn is more than just a commodity crop. It is considered a big part of heritage, culture, and tradition. The country is home to more than 50 native corn varieties, and Mexican leaders believe that incredible biodiversity could be threatened if genetically modified crops are introduced.

Related Stories
The USDA’s upcoming reports will drop on Tuesday afternoon, giving the trade real results on acreage shifts, drought concerns, and ongoing trade tensions, adding uncertainty for U.S. farmers.
South Texas farmers face worsening drought as Mexico falls short on water payments, leaving producers struggling for irrigation under the 1944 treaty.
Expanded access could boost demand for U.S. exports.
Exports depend more on demand than currency shifts.
Corn Refiners Association VP Kristy Goodfellow offered insight into the Feeding the Economy Report’s key findings, showing the breadth of agriculture’s economic impact and the challenges ahead.
Corn and soybean exports continue supporting demand levels.

LATEST STORIES BY THIS AUTHOR:

Understanding the Big, Beautiful Bill’s complex impact on SNAP benefits – that’s the topic of today’s Firm to Farm blog post by RFD-TV’s legal expert, Roger McEowen.
National Sorghum Producers CEO Tim Lust said farmers face a challenging year with strong supply, murky trade conditions, and uncertain access to their largest market: China.
RFD-TV Markets Expert Tony St. James breaks down the state of agribusiness and harvest progress across the U.S. for the week of Monday, September 15, 2025.
Missouri Cattle RanchHER Alda Owen joined us on Monday’s Market Day Report to talk about the all-new episode of FarmHER + RanchHER, which premieres on Thursday, Sept. 19!
U.S. trade talks with China resume, but meat industry leaders say dealing with shifting demand and market uncertainty is nothing new in this side of the ag sector.
Tariffs are pushing up input costs, with fertilizer prices rising $100 per ton and machinery costs climbing due to steel and parts duties.