Check the exact product
Orzo describes a pasta shape, not a gluten-free grain. San Giorgio’s orzo ingredient list names wheat semolina. Do not assume a rice-shaped food is made from rice. Match the exact product and look for gluten-free labeling.
Gluten ingredients and cross-contact
NIDDK identifies wheat (including durum and semolina), barley and rye as gluten-containing grains. It explains that cross-contact can transfer gluten during growing, processing, storage, preparation or serving. Ingredient origin alone cannot establish the gluten content of a finished product.
What does a gluten-free label mean?
NIDDK explains that FDA-regulated foods labeled gluten-free, no gluten, free of gluten or without gluten must meet specific requirements, including less than 20 parts per million of gluten. The threshold is one condition, not the entire rule, and it does not mean zero gluten. The FDA rule does not cover USDA-regulated meat, poultry and certain egg products, or most alcoholic beverages. Check current packaging and ask the manufacturer when unclear.
What this guide can establish
We do not estimate gluten concentration or promise that an individual product is safe. USDA nutrient data cannot verify gluten status. For celiac disease, follow your clinician or registered dietitian’s guidance; do not treat this page as a personal medical recommendation.
Common questions
Is orzo gluten free?
Ordinary orzo is wheat pasta, so it contains gluten even though it looks like rice. A purpose-made rice- or corn-based gluten-free orzo is a different product; check its package.
Does naturally gluten free mean every package is suitable?
No. Check the exact product’s ingredients, gluten-free labeling and cross-contact information. NIDDK recommends contacting the manufacturer if you are unsure.
Can USDA nutrition numbers prove gluten-free status?
No. A nutrient record is not a gluten test or certification. This guide does not estimate gluten parts per million.
📚 Sources and limits
- NIDDK: Eating, Diet, & Nutrition for Celiac Disease — Official text, reviewed October 2020; archived October 29, 2026. Includes FDA labeling requirements and cross-contact guidance.
- San Giorgio: Orzo — Manufacturer ingredient evidence for this wheat product only.
For these FDA-regulated products, use the current package’s gluten-free labeling and contact the manufacturer about uncertainty. No nutrient table or estimated gluten range is provided.