Is quinoa gluten-free?

Quinoa is naturally gluten-free, but packaged products can be cross-contacted or mixed with gluten-containing ingredients.

Quinoa plants and seed representing a naturally gluten-free pseudocereal — Quinoa is naturally gluten-free; product labeling remains important where cross-contact matters.

The short answer

Pure quinoa does not contain the gluten proteins naturally found in wheat, barley and rye. People managing celiac disease should still choose appropriately labeled quinoa and inspect mixed flours, pasta, cereal, seasoning and prepared products for cross-contact or added gluten-containing ingredients.

Sources

The Role of Pseudocereals in Celiac DiseasePubMed
Gluten and Food LabelingU.S. Food and Drug Administration