🛠️ Invention or technique

Nixtamalization of maize

Nixtamalización del maíz

Date
c. 1200 BCE · confidence low
Place
Pacific coast, Escuintla, Guatemala
Credited to
Mesoamerican peoples of the Formative period
Field
Life & health

⚠️ Disputed: the sources disagree.

What it is

Cooking maize with lime or ash releases niacin, improves the amino-acid profile and allows a cohesive dough to be ground. It prevented pellagra and made tortillas and tamales possible.

The date of origin is uncertain; it rests on finds of comales and Formative-period remains on the Guatemalan Pacific coast. The link with pellagra was understood in the 20th century.

What it led to

  • tortillas and tamales as the base of the Mesoamerican diet
  • the prevention of pellagra, which ravaged Europe when maize was adopted without nixtamalisation
  • the nixtamalised maize-flour industry
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-09-23