We Are Made of Corn

Nine thousand years ago, someone in what’s now southern Mexico looked at a wild grass called teosinte and decided it was worth the wait. Teosinte barely looks like food — a few hard kernels wrapped in a husk not much bigger than your thumb. It took generations of selection, patience, and attention to turn that grass into maiz. Nobody alive at the start of that process saw the finished thing.

That’s the part that gets lost when corn shows up in an ingredient list. This isn’t a crop. It’s nine millennia of a relationship between people and a plant, refined slowly enough that the plant became dependent on us and we became, chemically, partly made of it.

Here’s the wound: somewhere along the way, corn got split into two categories — the industrial kind, grown for volume and processed into a thousand invisible byproducts, and the ancestral kind, grown for flavor and nixtamalized by hand. The first one is everywhere and gets no credit. The second one is disappearing and gets treated like a museum piece instead of a living practice.

Nixtamalization is the part nobody explains outside of a kitchen or a classroom: corn cooked in an alkaline solution — traditionally cal, lime — which unlocks niacin that would otherwise pass through the body undigested. Without this step, corn-dependent diets caused pellagra. With it, corn became a complete enough staple to build empires on. That’s not folklore. That’s food science your abuela knew before it had a name.

Here’s the reframe: choosing masa hecha a mano over a bag of instant corn flour isn’t nostalgia. It’s choosing the version of corn that still remembers what it was bred to be — flavor, nutrition, and a process that ties you to the nine thousand years of people who kept refining it, one harvest at a time, so it would be worth eating.

Somos de maíz isn’t a metaphor in Mesoamerican cosmology — in the Popol Vuh, humans are literally sculpted from corn dough after failed attempts with mud and wood. That origin story and the biochemistry point at the same fact: this plant isn’t an ingredient we use. It’s a relationship we’re still inside of.

Find a molino or a tortilleria near you that makes masa from nixtamal, not instant mix, and taste the difference once. You’ll notice it immediately — and you’ll understand why people fight to keep that process alive.

The podcast episode goes deeper into the science of nixtamalization and why corn sovereignty is a live political issue in Mexico right now, not just a historical footnote.

¿Tu familia hace masa desde cero, o de bolsa? No hay respuesta incorrecta — cuéntanos tu historia.

Read next: The Caldito Wasn’t Just Soup

Stay at the table: Subscribe to the Spanglish Culture y Comida Sustentable newsletter for more stories where food, language, and identity sit at the same table.