92% of American Corn is Modified
Today, almost all the corn grown in America is genetically modified — 92% according to the USDA. What are those genetic modifications? We don’t know; the companies that hold those patents want to keep it secret.

TL;DR
- 92% of corn grown in America is genetically modified.
- The specifics of these genetic modifications are kept secret by the patent holders.
- This secrecy is intended to prevent competition after patent expiration.
- Four companies dominate over half of the global commercial seed market.
- Bayer and Corteva Agriscience alone hold intellectual property for 85% of U.S. corn.